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I was lowering my TA with MA and aeration over the past few weeks. It seemed to settle into a stable 70. Then, I added boric acid in 3 increments to get to 50ppm. My understanding is that borates shouldn't really raise your TA. I haven't added anything other than that since it was stable at 70...

I've tried scouring for all the answers I could find about how a pool cover would affect chemistry but still have a few lingering questions. It seems that a cover will generally reduce FC loss from UV. Additionally, it should slow pH rise since it cannot off gas CO2. Both of these things...

Is it possible to take a sample of water into a jar and put it into a closet (or somewhere dark) for 8 hours to simulate an OCLT. Would the results tell you anything?

I have a plaster pool and spa that both were initially the same color. The spa developed a blue green stain. I am in the middle of slamming it because I assumed this was an algae stain. I read more about it and tried both the trichlor pucks test and the vitamin c test. Neither removed or...

I have a ~1000 gallon spa that is currently on chlorine. When I asked about converting it over to salt, PB stated that he wasn't sure if it was possible because the IC20 might over chlorinate. Is this the case? I'd like to stick with Pentair since everything else I have is as well, but I'm...