Clearwater PH Minus Decreaser - 1.5kg

Clearwater PH Minus Decreaser - 1.5kg

Clearwater Swimming Pool Chemical Starter Kit

Clearwater Swimming Pool Chemical Starter Kit

Clearwater Chlorine Granules - 1kg

£1.40 per 100 g
Product Features:

  • Ideal for daily dosing of your swimming pool or spa
  • Stabilised chlorine granules disinfect spa water
  • Rapid dissolving granules are simple to apply
  • Eliminates bacteria and harmful organisms
  • Ideal for Lay-Z-Spas, hot tubs and pools
In stock Free Delivery This product qualifies for Free Delivery within the UK!

Thoroughly disinfect your pool or spa with these Clearwater Chlorine Granules. The stabilised chlorine granules are ideal for daily dosing of your swimming pool or spa, to produce free active chlorine which kills bacteria and other potentially harmful organisms. They are rapid dissolving and have minimal impact on pH.


  • Clearwater Chlorine Granules - 1kg
  • Ideal for daily dosing of your swimming pool or spa
  • Stabilised chlorine granules disinfect spa water
  • Rapid dissolving granules are simple to apply
  • Can be directly applied to hot tubs exceeding 20°C
  • Eliminates bacteria and harmful organisms
  • Rapid dissolving, minimal impact on pH
  • Ideal for Lay-Z-Spas, hot tubs and pools


  1. Maintain the pH level within the ideal range of 7.2 - 7.6. If the level is not in this range, adjust with Clearwater pH Plus or pH Minus.
  2. Maintain free chlorine residuals within the range 1-3 mg/l (ppm) for pools or 3-5 mg/l (ppm) for spas. *Freshly filled new spas or spas left drained for a period of time require an initial start up dose of 20 mg/l (ppm) of free chlorine circulated for a minimum of 2 1/2 hours.
  3. This product may be applied directly to pools and spas where temperatures exceed 20°C. If below this temperature or in doubt, pre-dissolve the product in a clean plastic container at a maximum rate of 100 g of product per 2.2 gallons (10 litres) in water. Stir well to ensure product is fully dissolved. Add the resulting solution to the pool or spa whilst the pump(s) are turned on, preferably near the water inlets to aid distribution.
  4. Repeat dose/application if necessary to achieve levels in point 2 above.
  5. It is recommended you periodically (e.g. weekly or fortnightly) use a double dose to eliminate any excess contamination.

Daily Dose Rates
Water Volumes To Increase Chlorine Level By
Litres Gallons 1ppm 3ppm
1,000 220 2g 6g
4,545 1,000 9g 27g
22,700 5,000 45g 135g
45,450 10,000 90g 270g
More Information
International Delivery Available No
EAN 5031470039332
Brand Clearwater
Product Height (cm) 20
Product Width (cm) 10
Product Length (cm) 10
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