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Buy 1kg Blue Horizons Chlorine Shock Pot from Castle Hot Tubs, your number one supplier of hot tub chemicals and care products.
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?
Why do I need to test my hot tub / spa / swimming pool water pH levels?
Why do I need to shock my hot tub / spa / swimming pool water?
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Following on from advice given and also following the online article for this and non chlorine shock, I’m following the guidelines. Till now I’ve not used it regularly, but I presume it’s doing what it’s meant to!