All Swim

Chlorine Water Treatment

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** Please Note: Unfortunately, due to transport restrictions these items are no longer available for delivery and can be ordered for collection only **

Click here to view alternative Calcium Hypochlorite/Shock Chlorine that can be delivered.

These non stabilised chlorine granules are ideal for shock dosing or regular oxidisation of swimming pool water. However, they may also be used for routine disinfection. Calcium Hypochlorite with 65% available chlorine.
Chemical Safety Information
£15.00

** Please Note: Unfortunately, due to transport restrictions these items are no longer available for delivery and can be ordered for collection only **

Click here to view alternative Calcium Hypochlorite/Shock Chlorine that can be delivered.


Fi-Clor Superfast Granules (4kg) double up as a shock treatment for green or cloudy pool water and a regular-use sanitiser.

Calcium Hypochlorite with 65% available chlorine and fine particle size allowing for direct-dosage into the water without pre-dissolving.
£41.50

Pool & Hot Tub Chemicals

All Swim stock a complete range of both quality swimming pool and hot tub chemicals, in addition to our own brand we also supply other major brands including Aquasparkle, Blue Horizons, Gold Horizons, HTH and Lo-Chlor.

All chemicals are held in stock and available for next working day delivery (UK mainland).

Chlorine & Bromine – quick dissolving granules and tablets plus liquid chlorine for a range of pools and hot tubs. 
Algaecides – preventing unsightly algae with both long life and weekly dosed algaecides.
Dosing Systems – semi-automatic, constant rate and proportional rate dosing.
Chlorine Free Chemicals – for both swimming pools and hot tubs.
Starter Kits – a complete kit to help with treating water for the first time or at the start of a new season.
Water Balancing Chemicals – for total water management.

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.

Swimming Pool Chemicals and Water Management

We have produced a complete guide to swimming pool and spa water management with the aim of explaining 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 swimming pool 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 unlabeled 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 large volume of fresh water
  • Before disposing of empty containers, rinse them thoroughly in the pool
  • Always wash hands after handling pool chemicals
A.J & J.L Veysey | Company registration no: 1061642 | VAT no: GB133 4078 90
All Swim Ltd, Units 3-5 Link Trade Park, Penarth Road, Cardiff CF11 8TQ