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Yea, unfortunately I believe that's where the hardness come from. RO water tanker runs about $.10 a gallon and with only 2.26" of rain this whole year, I don't think I'll be harvesting anything. :(

Hi everyone and thank you for the welcome. I did test both the fill water (auto fill with municipal water) and R/O we have at the house this morning, all tested using a speedstir. Fill is 475 from the city and R/O was of course 0. Would you suggest a partial drain and refill? My salt level is...

Hi, I'm new to the forum, and new pool owner, and just opened my pool. I have a TF-100 kit and ran my first tests. Equipment: Pentair Easytouch Pentair Intellichem Pentair IH-40 SWG Pentair Clean and Clear Plus Cartridge filter 13,000 Gallon pool FC 3.5 CC 0 pH 7.4 TA 70 CYA 30 CH 1300 I...