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I would like to run my heater to get water warmer since its beatiful weather outside finally after cold. According to the heater (Hayward 400k BTU Natural gas) manual CH minimum is 200 but my CH currently is 25. I have a salt vinyl pool. I believe its not required to have higher CH for Salt...

So after always being not sure when is the dot actually considered gone during the test. I bought R-7065 CYA standard to test for how it should look. The standard solution is calibrated to 50ppm CYA. After doing the test with standard solution this is what it looks like at 50ppm in test tube...

Hi everyone, few weeks ago I bought a Hot Spring Grandee with Salt cartridge and Silver Ion stick. I had the salt output at 7 at first when they set it up. Everything was good. Been hitting the boost button every time we used it adding chlorine when needed. Then my wifes girl friends were in...

In the videos i attached there is alot of air bubbles coming out of jet returns and pump basket has air pocket at the top. when i turn on the pump there is no air pocket but over time it forms. It comes and goes. Sometimes no air bubbles and some times more or less. Is this normal or is there an...