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I have 2 check valves and I'm not sure which is failing. After the spa had refilled I turned off the pump and disassembled both check valves as well as the Jandy valve and everything looked fine to my unprofessional eyes. I would have expected the water level in the spa to drop while the valves...

Back in March my CYA was 50. I added 5 lbs of conditioner (ClearView primo powder Pool Water Conditioner & Stabilizer 99% isocyanuric acid) over the course of a few weeks and it didn't budge. That was using a sock in the skimmer. A little over a week ago I added 43 more ounces this time with the...

Moved from HERE Since my CH was at 900 and my CYA had spiked I decided to do a water exchange. Here are my readings before and after: Water Temp 62 degrees F BEFORE AFTER FILL WATER (TAP) PH 7.9 7.9 7.9 FC 7.0 4.0 0.5 CC 0 0 0 TC 7.0 4.0 0.5 TA 70 100 100 CYA 100 <30 (the black...

So I don't remember what excuse I gave myself for not following the experts' advice to do a water exchange in response to my post last August. Maybe I was thinking I would wait until the winter, then got distracted when my wife had a knee replacement, or the wet winter led me to believe I could...

I consistently have pH around 8. I add muriatic acid to bring it down to 7.0 or 7.2 to avoid scale buildup on my SWG cell. Invariably it rises back up. I do have a thin stream of water flowing from my spa into the pool just to keep the water in the spa moving. I have seen other posts where users...

I'm a long time user of the old pool math table, but read that it is no longer being maintained (don't know what maintenance would be required, but anyway...) so I switched to the Android app. I can't figure out how to use it. Are there instructions? I log in, get to the home screen, tap on the...

I have a spa attached to my pool and it sits a little higher than the pool. For the last few weeks now, after my pool pump shuts off my spa drains to my pool until the water level is the same in both. I have a jandy valve that directs the flow between the main drain and the skimmer or cleaner...

I replaced my SWG cell and refilled my pool a few weeks ago and have been trying to get the chemicals balanced since then. Here are my numbers today as tested in the local pool store: FAC: 5 TAC: 5 Salt: 4000 CH: 180 CYA: 70 TA: 100 pH: 8 Temp:62 degrees F Pool Math calculates my CSI to be...

My Zodiac LM2-24 SWG recently (last 2 weeks or so) stopped generating chlorine. There is no chlorine at all in my pool. Across the top of the control panel the indicators are as follows from left to right: Chlorine Output glows amber; Super Chlorinate is green, Add Salt is amber, but my salt...