Granular Shock

A traditional, stabiliser-free granular shock

Granular Shock is a stabiliser-free treatment that destroys swimmer wastes, prevents/kills algae, and can be used for regular disinfection in pools. It ensures crystal-clear water, eliminates contaminants quickly, and provides a safe swimming environment. 

• Destroys swimmer wastes
• Helps prevent/kill algae
• Stabiliser-free
• Can be used for regular disinfection

5kg Blue Horizons Chlorine Granular Shock is a traditional stabiliser free shock treatment product, these calcium hypochlorite granules have an available chlorine level of approximately 65% making them a good chlorine donor for pool water problem solving.

Granular Shock is very effective at restoring sparkling water from algae infestation. If you are not sure about using Shock, read our handy blog on using a shock in my hot tub / spa / swimming pool water?

Application Instructions
1. Maintain pH level within the ideal range of 7.2 – 7.6. If not in this range,
adjust.
2. Maintain free chlorine level within the ideal range of 1 – 3mg/l. Shock
dosing is recommended either weekly or fortnightly with a maximum free
chlorine increase to 10mg/l for a full shock dose.
3. Pre-dissolve this product in a clean contain at a maximum rate of 100g per
10ltrs of clean warm water. Stir well to ensure product is fully dissolved,
then add solution to the pool with the filtration running.
4. Repeat dose if necessary to achieve the desired level.
5. The pool water may become temporarily cloudy after application, so keep
the filtration running until this clears.
6. Allow the free chlorine level to drop to 5mg/l

Confused about your hot tub water chemistry? Our guides answer the most Frequently Asked Questions!

Why do I need to test my hot tub / spa / swimming pool water chlorine levels?
Should I test my hot tub / spa / swimming pool water pH levels?

Postage

If you require delivery to the Scottish Highlands & Islands, Isle of Man, Scilly Isles, Channel Islands, Northern Ireland or outside of the UK mainland please contact us for a postal quote before making your purchase.