Algicides, Clarifiers & Cleaners

Algicides , Clarifiers & Cleaners

Algaecides, clarifiers and cleaners are essential companions to your swimming pool or hot tub sanitiser for keeping water clear, balanced and inviting - Algaecides prevent and control algae growth, clarifiers help coagulate fine particles so your filter can remove them, and cleaners tackle scum, stains and scale on surfaces. Use these alongside your sanitiser routine to maintain crystal‑clear water in both pools and hot tubs.

Whether you want to pre‑treat before a busy season, clear cloudy water, or remove stains on pool walls and liners, this product range offers the right tools: long‑life algaecides, dual‑action clarifiers, flocculants, tile & waterline cleaners, filter cleaners and more. Combine them wisely with your regular chlorine dosing to achieve sparkling performance.

All Swim stock a complete range of algicides, clarifiers and cleaners to keep your swimming pool water sparkling! In addition to our own brand we also supply other major brands including Aquasparkle, Blue Horizons, Briswim, Gold Horizons, Kleen Pool, Lo-Chlor and Roldeck.

All chemicals are held in stock and are available for next working day delivery (UK mainland). Please note hazardous goods charges apply to certain items and these goods are only available on a two day delivery service.

Algaecides

 – Preventing unsightly algae with both long life (6 monthly) and weekly dosed algaecides as well as copper and copper free options.  Additionally, our Lo-Chlor algaecides have a fantastic variety of products to help prevent algae growth from occurring but also to tackle particularly stubborn types of algae when they do appear.

Clarifiers

- Clarifiers are chemicals that cause smaller particles to join together to form bigger particles, big enough to get trapped by your filter.

Slatted & Safety Cover Cleaners

- Slatted and safety covers protect your pool from debris and heat loss, but over time they collect scale, algae, grime and mineral deposits. Using a specialised pool cover cleaner helps you remove build-up without harming the cover material. 

Swimming Pool & Hot Tub Cleaners

- From hot tub and swimming pool waterline cleaners, to pool surround cleaners, All Swim stock a wide range of cleaners to ensure your pool or hot tub is always clear and sparkling, our specialist range of stain removers and stain prevention can help with the most stubborn of stains.

If you are unsure of any element of water treatment or dosing our experienced team are always on hand to offer help and advice on all elements of regular water treatment or problem solving - for further help and advice please do not hesitate to contact us on either 029 20 705059 or alternatively complete our enquiry form.

Frequently Asked Questions (FAQ)

Q: What Is The Difference Between An Algaecide And A Clarifier?
A: An algaecide kills or inhibits algae growth, preventing green or slimy water. A clarifier gathers tiny particles into larger clumps (coagulation) so your filter can trap them or let them settle for vacuuming.

Q: Can I Use Algaecides Or Clarifiers In A Hot Tub As Well As A Pool?
A: Yes - many products are compatible with both pools and hot tubs. Always check the manufacturer’s instructions and ensure your hot tub’s materials and balance levels allow safe use of the product.

Q: When Should I Use A Flocculant (Floc) Instead Of A Standard Clarifier?
A: Use a flocculant when water is very cloudy or murky - it forces particles to clump and settle quickly, but you’ll often need to vacuum the settled debris. Standard clarifiers work continuously by helping your filter do a better job.

Q: How Often Should I Clean Pool Surfaces, Filters And Waterlines?
A: For best results, clean surfaces and waterlines weekly with a specialised cleaner. Filters should be cleaned or backwashed regularly (weekly or biweekly depending on use). Scum and stain cleaners can be used monthly or as needed.

Q: Are These Products Safe For Swimmers Immediately After Use?
A: Most algaecides and clarifiers are safe after proper mixing and circulation, but always follow instructions. Some stronger treatments or stain removers may require a waiting period before swimming.

Q: How Do I Choose The Right Algicide Or Clarifier?
A: Consider your water type (fresh vs salt), filtration system (sand, cartridge, DE), severity of algae or cloudiness, and whether you need copper vs copper‑free formulas. Use a long‑life algaecide for less frequent dosing and a clarifier that is compatible with your filter. If you are unsure which chemical to choose the All Swim team is on hand to help and advise.

Chemicals and Water Management

All Swim has produced a complete guide to swimming pool and spa water management. The aim of this guide is to explain step by step, the principles of maintaining safe high quality water with the minimum amount of expense and effort. The guide contains advice on general maintenance and chemicals. You can view the complete guide to water management here.
Note: The recommendations in this guide are for domestic swimming pools and hot tubs only.

Swimming Pool Chemical Safety

• Read instructions on each swimming pool chemical product thoroughly before use
• Never mix different swimming pool chemicals
• When pre-dissolving chemicals, always add chemicals to water and never vice versa
• Always pre-dissolve chemicals in a clean plastic container
• Always handle your swimming pool chemicals in a well-ventilated area, preferably outdoors
• Never use unlabelled swimming pool chemicals
• Store all swimming pool chemicals in a secure, dry and cool place
• Keep chemicals away from children and animals
• Avoid spillage
• In the event of a spillage, clean up using clean receptacles and dispose of in the pool. Flush area thoroughly with a large volume of fresh water
• Before disposing of empty containers, rinse them thoroughly in the pool
• Always wash hands after handling pool chemicals