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I've got an intex pool with an upgraded pump. The return included with the pool has a 1.5" intake but flows through a venturi that is maybe 1/2" at its smallest part (where the air intake is). I like this return because it helps to aerate the pool, but I was wondering if anyone knew how much...

I'm wanting to know if anyone knows if the Boraxo soap I added to my pool could be causing a high CYA reading. I added 1lb 8oz to my 9'x18'x52" pool (fresh fill), and when I checked my reading today after the sock was empty I got a value of 70 or maybe 60 if I really strained to see the dot...

Maybe @chem geek or @JoyfulNoise can chime in, but I'm wondering if something in the water can produce a false positive on the BTB/Xylitol drop test. I've either got ~30ppm in my fill water or something in my water is causing the test to read high. Source water is: ph 7.2-7.4 CH 500-600 TA 250...

I was finally at the end of a long journey of getting well water cleaned up in my pool; having finally extinguished the last of the copper and iron and getting the water nearly clear. Time to turn to more mundane issues, I started adding muriatic acid to bring my pH and TA down, and as TA got...