Venams Posted August 22, 2014 Report Share Posted August 22, 2014 I'm going to be cleaning my new hot tub filter for the first time. Picked up some TSP from my local Home Depot. I'm wondering how much TSP to use if I'm using a 5 gallon bucket to clean my cartridge? Quote Link to comment Share on other sites More sharing options...
chem geek Posted August 23, 2014 Report Share Posted August 23, 2014 As described in How to clean a cartridge filter you use one cup of TSP per 5 gallons of water so that would be 1.6 fluid ounces volume per gallons. Quote Link to comment Share on other sites More sharing options...
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