Hendrik Posted December 24, 2023 Report Share Posted December 24, 2023 Hi, I have a cedar hottub (Roberts Hot Tub). After about 2-3 months of operation, I started to notice some cellulose, fiber like stuff in the filters seemingly coming from the walls off the tub. I don't think it's biofilm, but rather the wood itself. I heard that (too-) high chlorine levels can cause the wood to disintegrate, but I am definitely on the low side (plus electronic copper ionizer) and also have been measuring cholorine around the <=1ppm mark. My question is, to what extend is this normal or not normal, is it normal at all? Thanks for help. Quote Link to comment Share on other sites More sharing options...
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