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Over the last 30 years as a pool owner I have had my ups and downs. Sometimes getting an algae flareup without being able to see the bottom of the sallow end much less the deep end. I at one time was breeding African cichlids and using a Diatom Filter to quickly clear murky tank water. The Box...

I’m understanding that high CYA means your free chlorine has to be higher according to the chart. Is it the CYA binds with the chlorine but the free chlorine test still shows it as free chlorine but the bound chlorine is not active ? So that if I have 150 CYA and I need over 10ppm chlorine it’s...

Hi, 63 years old and still learning. I have a 20x40 pool inside a greenhouse . The greenhouse is full acrylic double wall 17 foot peak 108 x 39 feet. I use to grow flower baskets on a computerized cable system above the pool but Walmart put us out of business. anyway, every year after a few...