Chlorine Shock (Calcium Hypochlorite Granules)

[SP152-10]    Pack size - 10kg

£46.99

Chlorine Shock (Calcium Hypochlorite Granules)
Chemical: Calcium Hypochlorite
Function: A granular form of chlorine shock treatment for larger volume pools that are not emptied on a regular basis. Can also be used as a chlorine sanitiser for indoor pools.

We recommend that you only buy sufficient chlorine shock to last one season. The reason is that the chlorine gradually attacks the plastic materials it is packaged in making them brittle and weak.

Dosing Instructions (Pool: Shock Treatment)
  • Once a fortnight or more often in hot weather, boost your chlorine level using the shock granules.
  • Add 500 grams (1 bag) (1 scoop = 100 grams) per 10,000 gallons of pool water.
  • The granules are dissolved in a bucket of warm water and distributed around the pool or poured into the skimmer basket. Make sure your skimmer basket is free from all other types of chlorine before pouring it in.
  • If algae is present you may need to double or even treble the recommended dose.
  • Adjust the pH to between 7.2-7.6.
  • Keep the filter free of debris and allow the water to circulate overnight. Allow the available chlorine level to drop below 3ppm before entering the pool. If this takes too long excess chlorine can be removed using a chlorine reducer Dechlorinator
Dosing Instructions (Pool: Chlorine Source)
  • Add 75 grams per 10,000 gallons of pool water to increase the chlorine reading by 1 ppm.
  • The granules are dissolved in a bucket of warm water and distributed around the pool or poured into the skimmer basket. Make sure your skimmer basket is free from all other types of chlorine before pouring it in.
  • Maintain a chlorine reading of 1 to 3 ppm.
DO NOT MIX UNSTABILISED CHLORINE WITH ANY STABILISED CHLORINE AS IT WILL EXPLODE

Click here for a MSDS Sheet for this product.

by David Rollo on 19/06/2018

by Declan O'Farrell on 13/06/2018

by Kerry Williams on 13/06/2018

by Alan Bye on 30/05/2018
Useful product and individual 500g packets give less chance of product going off when tub opened.

by Peter Jones on 19/01/2018

Service review

by Tessa Skelton on 03/08/2013

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