moishe Posted May 8, 2012 Report Share Posted May 8, 2012 ... OTO or tablet based kits ... OTO bottle kit ... OTO chlorine ... DPD tabs ... ... FAS DPD test ... Umm, sorry I have to ask, but the terms are just to short to get good search results for and I can't ever seem to see them written out. What do OTO, FAS and DPD each stand for? Quote Link to comment Share on other sites More sharing options...
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