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I have a very close friend who has been having a lot of trouble for a while with his pool (especially algae), so I had him bring me a water sample. These are the results by using a Taylor K2006 test kit and a copper test kit. The pool is an inground 16x32 vinyl liner with a Hayward EC65A...

I currently have a Hayward progrid DE4820 filter with a Hayward SP710XR50 multiport valve and a Pentair whisper flow 1.5hp pump. The outlet fitting on the the multiport has developed a leak along the seam on the outlet port. I want to replace it with a higher flow rate valve, preferably a...

My vinyl liner always seems to have an invisible slightly slippery coating on it. You can't see it, only feel it. If I raise the FC to shock levels, it goes away. As soon as I return to normal FC levels, it returns. I brush it away and it's back the next day. My chemistry is good FC 4 CC 0...

This is kind of a weird thing. When I test my CYA with my Taylor K-2006 kit I get a high reading of 80. When I bring a sample to the local pool store they get a reading of 25. In the Taylor kit, I add solution until the dot on the bottom of the tube disappears. In the pool store test it has...