Re: Calcium Hardness
Elliott, you reported that your CYA is zero, but have been using 3 inch tabs i.e. tri-chlor. Tri-chlor adds stabilizer, so this doesn't seem possible. Possibly it is VERY high. You should determine you CYA with a good kit. If these results are from Leslies, it's a good indication why Doc and Watermom (and most of us "regular folks" on the forum) distrust pool store testing methods. How much chlorine you need to sanitize is directly related to CYA.
In-ground gunite 16 x 30 13,000 gal. Full screen enclosure. 120 sq ft. Filter cartridge, 1-1/2 HP pump. Master Pools In-floor cleaner. Taylor K-2006.
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