We recommend rotating your filters every 2 weeks with a spare if you have one to hand. Take out the used filter and spray generously with Instant filter cleaner. Always read the instructions on your brand bottle, but on average after it has had 5 minutes to soak in then spray clean with a pressured stream of water from a garden hosepipe to loosen any dirt and wash out the cleaning solution. Allow to dry fully before using in your hot tub again.
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