The calcium hardness was a recent reading. I'm off to the pool store to see if they've got a cyanuric acid test kit; I'll have them test a sample for chuckles ;-)
Re: Newbie's green pool
The calcium hardness was a recent reading. I'm off to the pool store to see if they've got a cyanuric acid test kit; I'll have them test a sample for chuckles ;-)
Re: Newbie's green pool
Remember that when adding DE to a sand filter, it sometimes doesn't show the pressure increase immediately, so don't add more for at least 30 minutes. If, after that time, you still don't show the 1psi increase, then add just a bit more.
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