Fit@Home with Endless Pools – Your Workout Programme at Your Fingertips!

Endless Pools Fit@Home AppThe Endless Pools Fastlane is a counter current system that enables the user to swim for as long as desired without turning, and is available either as a standalone unit installed in swimming pools or as part of the Endless Pools Swimspa range. If you’ve ever used a Fastlane, you’ll know all about the benefits of being able to swim-in-place without turning from a workout perspective.

The latest innovation from Endless Pools, the Fit@Home Wifi Kit and Mobile App, have raised the bar even higher by enabling you to tailor and control your workout with your fingertips! The Wifi Kit consists of a Wifi board and antenna that hook directly to the HPU, producing a Wifi signal that is compatible with most mobile devices. After then downloading the Fit@Home App (free on any iOS or Android OS supported device) you can get to work creating your customised workouts and saving them- ready to be accessed in a flash when it’s time for your workout.

Become Your Own Personal Trainer

Choose and set your workout time, pace and distance, save and press the start button on your mobile or tablet when you’re ready for your tailor made workout – leaving you to focus on getting the most out of your session without interruption.

Using an Endless Pools Fitness Systems complete with a Fastlane and Underwater Treadmill allows for even more variety, think:

  • 10 x minute swim @ pace
  • 5 x minute run @ pace
  • 10 x minute swim @ pace

Or if you just want a quick fuss-free workout, the Manual Control option is ideal for a quick swim.

If you have an Endless Pools Fastlane* in your pool or your Endless Pools Fitness System* and want to enhance your workout experience, the Fit@Home App offers a convenient way of planning workouts in advance to give you variety and push you harder during the session – your very own Personal Trainer at the touch of a button.

For more information on the Fit@Home App or Endless Pools contact us on 02920 705059.

*Please note the Fit@Home Wifi Kit is only compatible with EP3 power units.

Building your own Swimming Pool with a DIY Pool Kit

Excavating the ground in preparation for building a DIY poolHas the glorious summer we were lucky enough to enjoy this year left you dreaming of improving your outdoor space? Believe it or not, now is the ideal time to put plans into place for having your own in-ground Swimming Pool installed by Summer 2019.

What are the options?

The first thing to decide is whether a Concrete Tiled or Vinyl Liner DIY pool suits you best. A liner pool is the cheapest option and can be built to a variety of pool sizes. Standard DIY liner kits include a 30 Thou 0.75mm thick ‘bag type’ vinyl liner, with the other option being a 1.5mm thick specialist ‘On Site’ lining that is also available.

Liner pool installations also have a quicker start to finish time, as they don’t have the same curing and drying time requirements as a Concrete pool. Liners usually have a lifespan of 10-15 years (handy tip: the better you look after the pool water chemistry, the longer your liner will last!) which gives you the chance to change the appearance at the time if you feel like a change.

Liner pools consist of a concrete strip foundation with concrete block walls built up from the floor. The pool walls are rendered and the floor screeded, to provide a completely smooth surface for the liner. The vinyl liner is what acts as the waterproof membrane of a liner pool.

Laying the blockwork for the walls of a DIY poolConcrete pools can be built to any size and shape and consist of a reinforced concrete slab base with starter bars coming out of the floor which sit within the cavity of the concrete block pool walls. Concrete pools require 2 coats of waterproof render over the walls and floor, so that the pool shell itself is fully watertight. The purpose of mosaic tiles is simply aesthetic, as they are not necessary as part of the waterproofing.

It’s easier than you might imagine…

Planning permission is not usually required by the majority of UK local authorities for self-build pools in domestic back gardens (unless installing a pool building or an enclosure is also planned), but it is recommended you check with your local authority in advance. And certainly, the foundation work and rendering of the pool walls is typically within the capabilities of a standard builder.

Step by Step, these are the stages involved in DIY Swimming Pool construction:

  1. Preparing the blockwork wall for rendering your in-ground poolMarking out the pool. Once the pool size has been decided, mark the area out to the given dimensions.
  2. Excavation. Time to dig - A mechanical excavator is by far the quickest and easiest method of carrying out this part of the project!
  3. Foundations & Rendering
    Liner Pools: Lay a concrete strip around the perimeter of the pool, 1 x course of concrete blocks on flat for the walls (with no wall cavity or reinforced bars required for the floor).
    One coat of render is applied to the walls and screed to the floor then a concrete ringbeam fitted behind the top of the pool wall which is then backfilled. The purpose of the render is to provided a completely smooth surface so it’s important to ensure no stones etc are present in the render as this will be visible once the liner is fitted.
    Concrete pools: A steel mesh reinforced concrete slab forms the foundation with starter bars for the walls. 2 courses of concrete blocks on flat make up the walls with a cavity for the steel reinforcement for stability.
    Concrete pools are made watertight by 2 x coats of sand and cement render mixed with a special chemical that provides the waterproofing element.
  4. Installing the underlay prior to fitting the DIY pool kit linerFinishing. A white plastic called ‘Linerlock’ is fitted around the perimeter of a liner pool which holds the liner in place. There is a wide variety of liner patterns and styles to choose from which have a very realistic appearance to actual mosaic tiles. Concrete pools can either be painted with specialist pool paint or tiled with mosaic tiles.
    Coping stones for the pool surround are laid before the liner or the mosaic tiles are fitted with the final stage being the installation of your pool equipment (pump, heater and filter). This equipment is housed in a Plant Room, preferably as close to the pool as possible.

Complete guides to the construction of both Liner and Concrete DIY Pools are available here:

View the All Swim guide to liner DIY pool kits

View the All Swim guide to concrete pool kits

A Pool adds value to your Wellbeing and your Home

The finished DIY liner swimming pool, ready to enjoy!Once considered a luxury purchase of the wealthy, DIY swimming pool kits have made owning and building a pool more accessible and affordable than ever.

Adding a swimming pool to your garden is a great way of ensuring spending more quality time with your family and friends – whether it’s pool parties for the kids and their friends or enjoying a ‘staycation’ at home. No more expensive trips to the local swimming pool when you fancy a swim- simply grab your towel, remove the pool cover and you’re all set!

If you’re interested in finding out more, we offer expert advice and free, no obligation site visits across the UK. Please get in touch with us on 02920 705059 or email sales@allswimltd.com and discover how we can help your project turn into reality.

I need a replacement hot tub filter cartridge, what do I do?

Finding replacement hot tub filter cartridges can sometimes be a challenge, especially if you’re unfamiliar with the make and model of the spa or need a filter for an older model. Don’t worry though, we stock a vast range of popular filter cartridges at our hot tub showroom here in Cardiff, if we don’t have your particular hot tub filter we can source a vast range of other makes and models from our trusted network of suppliers.

Does your filter have a manufacturers code?

Perfect! This is usually the easiest way to identify the make and model of filter cartridge you require. Look for a manufacturers code on one of the ends of the cartridge and this will help us source a replacement item for you relatively quickly.

I don’t have a code, but I have my old filter cartridge.

If you can’t find a manufacturer’s code on your hot tub filter we can still source a replacement for you based on a few simple measurements of your old filter. Firstly measure the outside diameter (OD) of the hot tub filter cartridge and the inside diameter (ID) of the hole in the middle of the cartridge.

Next, measure the length from the outside of the cartridge (not including any raised steps, handles or threads).

Measuring the OD and ID of your hot tub filter Measuring the length of your hot tub filter


Lastly, if your hot tub filter cartridge doesn’t have a hole at each end, just let us know what type of end caps it has. Other types of tops will either be a handle or closed (flat). For the bottom, your filter may have a slip fit collar, coarse thread (SAE) or fine thread (MPT) collar.

Ideally, to help us match your hot tub filter cartridge, a few photographs always helps us to identify the correct replacement for you. Or, if you are planning on visiting our hot tub showroom in Cardiff, bring your old filter with you and one of our trained sales staff will help identify the correct cartridge for you.

I don’t have a code or an old filter cartridge. What now?

Without an old filter cartridge or part code the simplest way of sourcing a replacement is by providing us with the make, model and year of manufacturer of your hot tub.

Remember, we are able to source a huge range of hot tub filters and our website has a small selection of the cartridges we stock. If you need any help or advice please call one of our friendly sales staff to discuss your specific needs on 029 2070 5059.

Introducing Bayrol Active Oxygen chemicals, an alternative to chlorine and bromine sanitisers for your pool

Have you been looking for suitable alternatives to chlorine or bromine sanitisers for your swimming pool? Perhaps you suffer with sensitive skin and need a milder disinfectant for your water? Finding a suitable alternative to traditional sanitisers has never been easier with our Bayrol Soft & Easy range!

What is Bayrol Soft & Easy?

Bayrol Soft & Easy active oxygen pool sanitiserBayrol Soft & Easy is a combination of granules based on active oxygen and algaecide that helps provide your pool with reliable pool water disinfection whilst helping prevent algae growth. In addition, Soft & Easy also contains a clarifier for enhanced sparkling water. Soft & Easy features handy sachets that you can use directly in your pool’s water once a week - an even simpler way to enjoy safe, swimming water without the need for Chlorine or Bromine!

How to use Bayrol Soft & Easy

Before you start using Bayrol Soft & Easy you will need to ensure the pH value of your water is between 7.0-7.4. Once the pH value is in range add a double dose of Soft & Easy to get started.

For regular maintenance add the required number of sachets on a weekly basis to your pool. After dosing, wait for a maximum of 1-2 hours before testing the water with an 02 pool tester and DPD No4 tablet. The desired level of Bayrol should be at least 8 mg/L. If this level is not achieved, repeat the dose of Bayrol, again, waiting to test between the 1-2 hour time limit.

How to shock with chlorine when using Bayrol Soft & Easy

Even though Bayrol Soft & Easy is totally chlorine free, it is recommended that a periodic shock dose of chlorine, especially for use as a problem solver, is used with this system. All Swim Shock is an ideal maintenance shock treatment for use with Bayrol Soft & Easy.

Please note: household cleaning products must not be used in your swimming pool or surrounding area, always use specially formulated, swimming pool friendly cleaning chemicals.

A Swimspa with a Difference; introducing the New E550 Endless Pools Fitness System

With a wealth of choice available on the Swimspa market, it’s a good idea to visualise how you see yourself using one early on in your search. 

For some, it’s a place to bring the whole family together; with the kids swimming and splashing around while the adults relax in the spa seats. Or perhaps you’re serious about your fitness and searching for the ultimate Aquatic Fitness System – whatever your reasons, finding the Swimspa that best suits your needs is key.

Different By Design

Endless Pools E550 Fitness SystemThe newest model by industry leader Endless Pools was designed based around customer feedback, resulting in a truly unique swimspa. 

Building on the success of the popular E500 in the Endless Pools range, the E550 is the same 15’ length but with a width increase of 13cm, making the E550 the widest swimpsa in the range at 239cm.

Featuring the signature Endless Pools Fastlane as the counter current system, optional underwater treadmill and resistance bands, this is an all-round total body fitness centre suitable for any swim stroke or water workout – just perfect for butterfly and breast stroke fans!

By relocating the steps to the front of the swimspa and replacing the standard hydrotherapy massage seats with two standing massage stations, every inch of space is made available for exercising in.

Low Impact, Low Maintenance

The Endless Pools Fastlane swim current system provides a deep, broad current helping you swim in place and the current easily adjusts to suit all levels, from toddlers to triathletes. 

For alternative aquatic workouts, use the resistance bands and add resistance by turning the swim current on for the ultimate core stability builder!  If you choose the Underwater Treadmill, you’ll also feel the benefits of walking or running minus the stresses of land-based exercise.

Whichever water-based workout you enjoy, you’ll reap all the same physical benefits as traditional exercise with low impact on your joints and muscles – say hello to faster recovery times and less injuries!

E550 Fitness System featuring the Endless Pools FastlaneAs with all swimspas in the Endless Pools range, the E550 features a durable, steel-framed cabinet with a modern, sleek design - designed with both style and functionality in mind while being virtually maintenance free.

The Endless Pools Experience

One thing that is highly recommended is to ‘wet test’ a swimspa before making that all-important decision.  After all, this isn’t an everyday purchase and you want to get a true feel for what it’ll be like to actually use in real life. We currently have two swimspas by Endless Pools available to try, the X500 from the SwimCross jetted swim current range and the E2000 featuring the signature Endless Pools FastLane counter current system, so that customers can try both out and help them decide which type suits their needs best.

To book a free trial session at our Cardiff showroom, please contact us either by calling 02920 705059 or email us at sales@allswimltd.com.

Why Is My Pool Going Green & Eating Chlorine?

Green swimming pool caused by algae formationOne of the most common issues pool owners are facing at the moment is the pool turning green and having to then spend time and money rectifying the problem. But what causes the problem and how can you prevent it?

Algae Loves the Sun!

The green colour in your swimming pool is caused by the presence of algae in the water. When conditions are right, algae blooms and the pool turns green; having out of balance water, warm temperatures, sunlight and the presence of phosphates all contribute to algae growth but so does the lack of good circulation, filtration and sanitisation.

If it’s all starting to sound like a lot of hard work, fear not, it is possible to keep your pool clear and free of algae with a little commitment to the cause. It is really important to regularly monitor and test the chlorine level and to then dose the water with the appropriate amount based on the volume of water your pool holds. Another essential step during this weather is to ensure your pump is turned on and the water is circulating – not turning the pump on will stop the chemicals from circulating and allow the algae to thrive! Chlorine does a great job of sanitising the water, keeping it free from bacteria and harmful organisms. But when the weather is hot and sunny and the pool is being used a lot, the demand for chlorine increases, so you will find that your usual dose is not as effective and your water balance is suffering.

How Do I Clear My Green Pool?

There is a handy guide to looking after your pool available on our website as well as step by step instructions for How To Clear A Green Pool.

By maintaining your chlorine at a level of 1 – 1.5mg or ppm (parts per million) consistently you will dramatically reduce the chance of algae taking hold, and save yourself the headache of battling it!

Lo-Chlor Knockout Algicide and Starver XIn addition to chlorine you can also utilise other chemicals to make algae control a breeze!

Lo-Chlor Algae Knock-Out is highly recommended for stubborn algae blooms it is a heavy duty, copper free, dual action formulation, guaranteed to kill even the most stubborn forms of algae!

Phosphates are a major food source for algae, high levels of which often result in a recurrence of stubborn algae in swimming pools. By removing the phosphates from the water, the algae cannot survive. Lo-Chlor Starver X is an effective superior strength liquid phosphate remover for use in swimming pools.

Kleen Pool Longlife Algicide will maintain your pool free of most algae for periods up to 6 months. One simple application will free you from the problems caused by algae blooms; discolouration and hazes which can affect the appearance of your pool. When your pool is not being used for swimming, such as holiday times and throughout winter, Kleen Pool will keep your pool clear and free of most algae without the use of other pool chemicals.

Further advice on water treatment and calculating the volume of your pool can all be found in our Water Treatment Guide as well.

The All Swim glossary of Hot Tub terms

Caldera Utopia Spas hot tubsChoosing your Hot Tub can (and should) bring up lots of questions. With so many options to choose from, how do decipher what features you will benefit most from, or indeed what the feature even means exactly?

  • Why do some tubs feature Ozone?
  • What is an Air Blower for?

The list goes on. So we’ve put together a nonsense-free, simple Glossary of the most common Hot Tub features and terminology – so you can easily understand and identify the key features you want in a tub.

A is for Air Blower

Hot Tub jets typically use a mixture of water and air to produce a massage effect. An Air Blower is a separate motor from the pump motor, which works by pushing large volumes of air through specific jets. The Air Blower can be turned on or off using a dedicated control, which produces a bubbling effect for a lighter type of massage than water-only massage jets.

Bear in mind that the use of an Air Blower will offer a variation in the massage effects, but the air will also have a cooling effect on the air (impacting energy costs due to the call for heat).

B is for Balboa

A familiar name that will come up frequently in the world of Hot Tubs. Balboa is the name of Balboa Water Group, who are recognised as one of the industry leaders in the production of hot tub control panels and topsides. One thing to consider, Balboa control panels alone do not determine the overall quality of a hot tub (as they can easily be retro-fitted to a wide range of tubs), so if you are considering a tub featuring Balboa controls, be sure to check out the full details and warranty information of the tub and the manufacturer.


A popular sanitiser for use in Hot Tubs which is an alternative to chlorine and works exceptionally well at high temperatures.

C is for Cover & Cover Lifter

Lifestyle Coverlifter ProLift IIA well-fitting rigid insulation cover will maximise heat retention in your tub and although not essential, a cover lifter makes taking the cover off and replacing it easier and protects the cover.


A sanitiser that is available in either stabilised or unstabilised forms. Stabilised chlorine is a slow release sanitiser and comes in granular or tablet form whereas unstabilised chlorine (known as Shock) quickly raises the level of sanitiser to kill off bacteria – ideal for treating fresh water or when sanitiser levels have dropped too low resulting in less than desired water quality.

D is for Diverters

The ability to divert power between seats in your hot tub is very useful; for example if there are only 2 of you sat in a 6 seater, diverter valves allow you to turn off the power to the empty seats, diverting it to the area of the tub being used.

Or for those times when you’re enjoying chatting but no longer need your massage jets on – you can just turn your jets off and remain in the tub.

E is for Energy Efficiency

One of the most frequent questions people ask when browsing our tubs is ‘How much is it going to cost me to run?’ A key question indeed. Caldera Spas models are designed to be highly energy efficient, through a combination of features such as the unique FiberCor insulation (on Caldera Spas) and EnergyPro circulation and heating system.

Realistically, monthly running costs come in at around £30-35 per month based on around 7 hours use per week.

F is for Frogs

A set of cartridges that sit within your Caldera Spas tub (in a built-in hidden compartment) that look after your water quality. The mineral cartridge softens the water while the Bromine cartridge delivers a constant level of sanitiser keeping your water clean and safe. Fully adjustable so you can increase or decrease the level as needed.


Used to reinforce the acrylic shell once it is removed from the mould.

Filter Cycles

The programmed time period when the hot tub water filtration comes on (e.g. twice a day at 12 hourly intervals).

G is for Ground Preparation

When planning the location for your hot tub, be sure to properly lay the correct foundation. A concrete slab is the ideal base, measuring 4 inches (10cm) in thickness and it should be completely flat and level.

H is for Hot Tub Circuit Therapy

Hot tub circuit therapy, the Caldera Spas differenceNot the type of ‘circuits’ you may have experienced in the gym – but a way more relaxing circuit. Caldera Spas have designed their tubs to encourage the bather to spend time in every seating position, resulting in a full body hydrotherapy massage that targets every muscle and stress point.

No more lounger-hogging!

I is for Insulation

One feature that appears across all 3 Caldera Spas ranges is the FiberCor Insulation, which is 4 x denser than traditional hot tub insulation foam. This makes it 4 x better at both heat retention with an added bonus being a quieter operation when the tub is on.

J is for Jets

Not all jets are created equally, and quantity doesn’t always equal quality! We recommend wet-testing any hot tub you are considering purchasing. Even if the exact model can’t be tested, trial a model from the same range or manufacturer.

Caldera Spas models all feature jets exclusive to Caldera, as they have created their own series of jets based on providing the highest quality of massage benefits for the user.

K is for kW (heater size)

The output measurement of a heater, usually ranging from 2-3kw in a hot tub. The higher the kW output the quicker your hot tub water will heat up, with average heating time around 12-18 hours from scratch.

L is for Loungers

An angled seat that enables you to recline in the hot tub. Some tubs feature one or multiple lounger seats whereas others offer more seats by not having a lounger at all.

M is for Music

Some tubs feature in-built music systems allowing you to Bluetooth music from your chosen device. Caldera Spas offer the option of having music or not in their tubs, so customers have the choice (great for when you already have an outdoor music system setup!).

N is for ‘No Flow’

An indicator that water is not flowing through the hot tub pump. Refer to your manual or contact your retailer for advice.

O is for Ozone

Although you will always need to use some form of sanitiser to kill off and prevent bacteria in a hot tub, it’s helpful having something that reduces the amount of chemicals required. Caldera Spas feature Monarch CD Ozone, which mixes ozone bubbles into the water as it travels through a special contact chamber - neutralising contaminants and reducing the need for additional sanitiser. A key benefit of the Monarch CD form of ozone is that it does not contain a UV light that needs regular replacement to remain effective.

P is for Pumps

The pump is what drives water up through the pipework and forces it out via the jets. Smaller hot tubs typically have 1 pump (driving up to 30 jets or so). Larger tubs will usually have 2 pumps.


The measure of acidity or alkalinity above the neutral pH of 7.0. Anything below 7.0 is considered acidic and above is alkaline. For hot tubs your pH should be maintained between 7.2 – 7.6.


Parts per million is the measure of concentration of a chemical.

Q is for Quality Assurance

Purchasing a hot tub is a big decision, so naturally you’ll want to feel confident in the quality of both the tub itself and the retailer. Some key points to look for are the Warranty details of the tubs, the reputation of the manufacturer and the company selling the tub.

A sure sign of a reputable retailer is to check if they are BISHTA members. BISHTA is a trade organisation that represents the British and Irish Hot Tub and Pool industry and its’ members are committed to a code of ethical practices and selling with integrity.

Similarly, buying a tub from a manufacturer who has been in operation for a long time is a good sign of quality – such as Caldera Spas who have been creating quality tubs for over 40 years. A good quality manufacturer will be reflected in the warranties they offer on their tubs also.

R is for Rotomolded

DreamMaker rota moulded hot tubsRotomolded hot tubs are solid, one-piece tubs that are extremely durable and rotationally constructed from plastic. Due to the one-piece construction, these tubs are very strong, lightweight and will never rot, rust, chip or crack. Also a cheaper option than traditional tubs. Why not view our rotomolded DreamMaker and Fantasy Spas hot tub ranges?

S is for Sanitiser

This is what keeps the water clean, safe and free from bacteria. The most commonly used options are bromine or chlorine.

T is for Test Strips

A simple method of testing your hot tub water; a strip is dipped into the water then by reading the colours against the colour coded chart on the bottle to identify any action you need to take to balance the water.

U is for Underwater Lighting

Many tubs feature LED underwater lighting which can enhance the ambience in your hot tub.


An exclusive massaging system featured in some of the Utopia models by Caldera Spas, the user can select a variety of massage sequences to fully customise the hydrotherapy massage.

V is for VersSage

A powerful jet featured on the Paradise and Utopia ranges by Caldera Spas that can be adjusted to provide a variety of massage effects. The more you angle the nozzle, the wider the path of rotation.

W is for Watkins Wellness

The US organisation currently the global leader in producing hot tubs founded in 1977. Part of the MASCO Corporation – a Fortune 500 company listed on the New York Stock Exchange. Watkins manufacture two leading hot tub brands; Fantasy Spas rotomolded tubs and all three ranges by Caldera Spas (Vacanza, Paradise and Utopia).

X is for ‘X’-Display Deals

It’s always worth checking if there are any deals to be had on ex-display models as sometimes it can result in a real bargain.

Y is for You Time

A major benefit in owning and using your hot tub is having time dedicated to relaxation and stress relief. Regular hot tub use is proven to decrease stress and tension and to promote muscle recovery along with general wellbeing.

Z is for Zzz's

How does hot tub use improve sleep quality? Spending time in water temperature raises core body temperature. When you exit the tub, the resulting drop in your body temperature signals it’s sleep time to the brain, setting you up for a better quality night’s sleep.

Our guide to opening your swimming pool this Spring

Opening Your Outdoor Pool For Spring – A Step By Step Guide

Removing leaf debris with a swimming pool netNow that the ‘Beast from the East’ has finally moved on, us UK folk are turning our thoughts to the welcome onset of Spring. And for outdoor swimming pool owners, that brings the labour of love that is getting your pool ready for the season.

If you used a long life algaecide, such as Winterclear or Kleen Pool when closing down your pool for the winter, you will hopefully now find the pool free from algae, which is one less thing to take care of. Here is our step by step guide to the process of opening up your outdoor chlorine pool:

  1. Remove surface water and debris from the winter cover before removing it from the pool. You will then need to clean and dry it before putting it away for storage.
  2. Using a leaf net, remove as much debris from the pool as possible and clean any tide marks at the water line using either our All Swim Tile and Liner Cleaner or All Swim Waterline Cleaner.
  3. If you removed the pump over the winter, you will need to reconnect the circulation pump – making sure all electrical connections are free from dampness. If in any doubt, be sure to contact an electrician.
  4. Open up any valves beneath the water line which may have been closed or plugged.
  5. Check there are no obstructions to the drains, the outlets and the pump strainer basket.
  6. If necessary, top up the water level so that it can be drawn in through the skimmer/skimmers.
  7. Prime the pump, turn it on and check that the filter, skimmers and drains are all working. The water may be discoloured initially, which is common and no cause for alarm! If you find the water level is too high due to winter rainfall, you will need to pump it to waste.
  8. Run the filter for several hours, vacuuming out any remaining debris. Backwash the filter and top up with fresh water.
  9. Prepare your heat retention cover for use, cleaning off any patches of algae or mould.
  10. All Swim pool chemicalsCheck the pH and if necessary adjust to within the 7.2 – 7.6 range. pH is increased by the use of PAK 2 and lowered by using Pool Acid, both of which can be found in the Water Balance Section on our website
  11. Next you will need to give your pool a good dose of our Shock Chlorine Granules which is essential to kill off any algae and harmful organisms that may be present. Allow the water to circulate to ensure the shock chlorine is thoroughly distributed.
  12. If there are any stubborn algae patches, using our Lo-Chlor Knock Out Algaecide will help remove them.
  13. Adding an algaecide will help keep your pool free from unsightly algae during the season. Long-life algaecides will keep the pool algae-free for up to 6 months, or alternatively All Swim Algicide is a weekly treatment if you prefer regular dosing. Our full range of Algaecides and Clarifiers are perfect for these types of treatments.

And finally...time to pray for some sunshine, so you can enjoy your outdoor pool to the max this season!

If you need any advice regarding maintaining your swimming pool, feel free to contact us on 02920 705059, email us on sales@allswimltd.com or pop in to the showroom.

How to remove unwanted metal stains on swimming pools

Metal stains in your swimming pool.

Lo-Chlor No More Metal and Multi Stain RemoverMetal stains can be an unsightly and problematic issue on your swimming pool and occurs when water has lots of metal components in it. This can be caused by metal components in the pool (like pool ladders) rusting and degrading, accidental metal contamination from around the pool (your local builder dropping a few roofing nails) or even, if your pool water is sourced from a well or spring, metal compounds already present in the water (like iron and copper). The stains typically look black, green, rusty brown, orange, or yellow and can appear on the bottom or walls of your swimming pool, along vinyl liners or fibreglass pools and on steps or other pool equipment.

Don’t panic though! Removing these metal stains can be done with our specialist range of Lo-Chlor chemicals, even if a few repeated treatments are required.

How do I clear and prevent metal stains in my swimming pool?

Firstly you will need to treat your swimming pool with our Lo-Chlor Multi Stain Remover, specifically designed to remove iron, copper, manganese, tanning and cobalt (black stains present on fibreglass pools) and even rust from the floor and walls of your pool.

To begin the treatment you will need to reduce the chlorine level in your pool to 0ppm and adjust the pH level to between 7.2 and 7.6 pH. If the stain is present in a localised area of the pool you can apply the Multi Stain Remover as close to the stain as possible to help with removal, if the problem is widespread then apply the product evenly over the swimming pool surface. Always ensure your swimming pool pump is running when treating as this will help lift the stains from the pool surfaces.

Once you have treated your pool with the stain remover it is important to follow this with an application of Lo-Chlor No More Metal as this acts as a sequestering agent for any metal stains lifted from the pool surfaces that will now be trapped in solution in the pool water. Adding this to the water helps your pool filter trap any metal particles for safe removal during backwash. You should run the pump and pool filter for at least 12 hours after treatment of No More Metal, if the stains are particularly problematic run for 24 hours.

I’ve treated my pool but I still have some stains. What next?

After treating with Lo-Chlor Multi Stain Remover and No More Metal some metal stains can respond well to backwashing your filter thoroughly and brushing all of the surfaces affected by the metal staining. Follow this with a second treatment of Lo-Chlor No More Metal and run the pump and pool filter for at least 12 hours, longer if necessary. If the metal stains have been removed make sure you backwash the filter thoroughly. If the stains are still present you can try to rebrush the affected areas and apply another dose of No More Metal and repeat the backwashing and brushing steps.

If the metal stains are still present on the pool surfaces you will may need to start the Multi Stain Remover and No More Metal treatment again. Be patient! Multiple treatments of tough metal stains do respond well to this treatment, always ensure that you treat with the correct water balances outlined on the dosing instructions.

Need more help or advice?

If you are unsure about the suitability of using any specialist chemical treatments on your pool please don't hesitate to get in touch with us on 029 20 70 5059. Alternatively you can find more information on removing stains from your swimming pool by visiting the Lo-Chlor website.

Caldera Spas hot tubs, a unique hydrotherapy experience

Discover the Caldera difference for yourself

Caldera Spas Lumbarssage massage seatWith such a bewildering array of hot tubs on the market place it can be a little daunting as a first time buyer (or even a second or third time buyer looking to upgrade) to make a choice that’s going to be right for you, after all, hot tubs are a luxury purchase for most of us and it’s important to know you’re choosing one that’s going to offer something unique and give you the best possible experience for your money.

That’s where we think our Caldera Spas, and in particular our Utopia range, sits head and (soothed) shoulders above the competition. This incredible range of hot tubs includes an industry redefining approach to total body restoration through hot tub circuit therapy.

So what is Hot tub circuit therapy?

Well, hot tub circuit therapy is a bit like having a personal trainer in the gym. A personal trainer helps you create a plan that’s designed to move you from station to station with different exercises to give your body a balanced, full body workout helping to target all the major muscle groups.

Just think of your Caldera Spa as a personal hot tub therapist with each seat and position individually designed to provide a deep, relaxing massage for different muscle groups. Instead of sitting in one position like you would in most hot tubs our Caldera Spas encourage you to use the whole hot tub for relaxation. As you move around the spa the invigorating jet design and layout focuses on individual muscle groups, from neck and shoulders through to the large muscles of your back, lower back and even down to your hamstrings, calves and feet - often overlooked regions of the body when it comes to other hot tubs but if you spend most of your working day stood up you’ll really appreciate this aspect of the hot tub circuit therapy experience!

What's different about the hydrotherapy jets on Caldera Spas

The design and layout of the jets on any hot tub is the crucial element to your experience as a user and you won’t find a greater attention to detail or such a meticulous focus on the quality of the hydrotherapy experience than on our Caldera hot tubs. Each area of the hot tub has been specifically designed to target a particular muscle group and here are the massage clusters that will really help ease those aching muscles and gently soothe those tensions away.

Caldera Spas hydrotheray massage jets


Featured on either the seat or lounger, this targets your neck, shoulders and middle back.

Atlas Neck Massage

A contoured pillow that cradles your head while specialised, above the water line jets focus on your neck and shoulders.


Multiple jets focussing on the large muscles in your back. Importantly, some models feature jets that target wrists and calves.


A unique jet configuration that helps relieve tension and pain in your back’s lumbar region.

Euphoria Jets

These jets provide a deep, penetrating massage to your thighs, knees and calves and feet and you’ll enjoy two of these incredible feature jets in most Utopia models.

Hip Jets

These jets work on this often overlooked stress point and helps re-invigorate movement in this area of your body.

Angled Calf Jets

Working on the often overlooked muscles in your lower leg, perfect for those who spend most of the working day stood up.

Sole Soothers

Jets that stimulate and revive the muscles in your feet that help relieve the tension in the area of your body that bears your full weight all day.

The proof really is in the testing

Hopefully this brief glimpse into the most important features of our Caldera Spas has given you a valuable insight into the attention to design detail that these hot tubs offer, they really are a cut above the rest. But don’t take our work for it, we have a complete range of Caldera hot tubs, including the fabulous Utopia series, on display at our award winning showroom here in Cardiff. Why not arrange a visit? Our trained, knowledgeable sales staff are always on hand to help you explore this unique range of hot tubs and understand the benefits of hydrotherapy massage and we also have changing facilities on site so you are always more than welcome to book a wet test to try them for yourself. Be warned though, every customer that has tried these incredible hot tubs has made a purchase. That is surely proof enough of the Caldera difference!

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Directors: A.J & J.L Veysey | Company registration no: 1061642 | VAT no: GB133 4078 90