Re: The pool store woman was ******....
New liner this year, fresh fill with city water, sourced from the Ohio river. Needed stabilizer, so I took a sample to local Leslie's. Nice woman tests sample and asks pool size and condition. Tells me "Chlorine is low, need to shock! Stabilizer=0 need to add 6 pounds! Hardness is too low need to add 60 pounds!" My home testing vs. her numbers:
Mine-
FC=1.0, CC=0, TC=1.0, Ph=7.5, T/A= 100, CH=120, CYA=0 (I didn't test it, should be 0)
Hers-
FC=0, CC=N/A, TC=0, Ph=7.5, T/A=100, CH=110, CYA=0 (her test confirmed it)
Her recommendations are right in line with Leslie's standards. I told her that I had "shock" at home, needed stabilizer, and with a vinyl liner the Hardness was fine. She responded that she was "a Certified Pool Operator" and that I would have problems with pitting and corrosion if I didn''t raise the CH. I just got the stabilizer, Thanked her for the info and left.
Now I'm wondering about the CH.
I found this info via Google "ohio river water test"-
Waters with high hardness values are referred to as "hard," while those with low hardness values are "soft". Because hardness varies greatly due to differences in geology, there aren’t general standards for hardness. The hardness of water can naturally range from zero to hundreds of milligrams per liter (or parts per million). Waters with a total hardness in the range of 0 to 60 mg/L are termed soft; from 60 to 120 mg/L moderately hard; from 120 to 180 mg/L hard; and above 180 mg/L very hard.
I've replaced domestic, gas-fired hot water heaters that have been half-filled with sediment(calcium?) after several years using this same water. The proliferation of homes in this area with water softeners for city water also leads me to think that we have moderately hard water coming from the Mighty Ohio. Is it not hard ENOUGH for my pool???
I've also added 740 pounds of salt and 88 pounds of borax, does that make it any HARDER??