Pure-Spa, Spa Granular Shock (calcium hypochlorite 65%) 10KG

10Kg

Pure-Spa, Spa Granular Shock (calcium hypochlorite 65%) 10KG

10Kg
£64.99
Quick Find Code: 5596
MPN: PS5596
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Product Description
Product Description

An unstabilised chlorine donor especially suitable for shock chlorination of spas and small above ground pools. 
Pure-Spa Spa Granular Shock oxidises and removes organic pollutants.

10 p.p.m or more is the shock treatment level, following which, the level should be allowed to drop below 5 p.p.m before bathers enter the water.

These are unstabilised Chlorine granules: As a routine sanitiser, Calcium Hypochlorite is usually preferred for indoor pools where the effects of sunlight are less. When used outdoors, a separate stabiliser must be added to slow chlorine loss in sunlight.
For sanitising, the typical free chlorine level would be 2 to 3 p.p.m.for domestic pools, 3 to 5 p.p.m for heavier used pools.
10 p.p.m or more is the shock treatment level, following which, the level should be allowed to drop below 5 p.p.m before bathers enter the water.

TIP - Add shock chlorine at night so that it can work in the dark to maintain its strength for longer.

TIP - In soft water, Calcium Hypochlorite also builds the Calcium content of the water.

NOTE - At free chlorine levels above 10 p.p.m, the water sample colour using Phenol Red test tablets may be bleached. This could give the impression there is no chlorine when there is quite a lot.

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