Testing the water in your swimming pool or hot tub is vitally important, this is where the Castle Hot Tubs water testing kit comes into its own. This test kit will give you an accurate chlorine and pH reading. Simply compare the colours against the colour chart on the test kit after the tablets are dissolved in the correct chambers.
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?
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Trevor B 13/07/2022
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