New to the forum and this is my first post. I have had my four year old 18 foot round above ground pool for four years without any problems until now...Heavy rain storm made water cloudy. Leslie's Fresh n' Clear (oxidizer?) cleared it up. I've had them check my CYA level they said it was at 35.
When I checked it with my Taylor kit a couple of weeks later it was at 100 I also tested it with Acu-check and read around 90-100 (Hard to get a accurate reading with them).
Now my FC and CC level won't hold overnight. Find myself puring in a gollon of 12.5% chlorine a day.
I recently purchased a Shark Chlorine tablet (3" tabs) dispenser and filled it with five tabs. Left two holes open for 8,500 gallon pool per instructions. Could it be the tablets raised my CYA by 65 in just two weeks
I've always used Acu-Check test strips. I've now purchased a deluxe kit at Leslie's Pools which also includes a CYA check (Paid over $60.00 for kit). I've always used 3" pool tabs in a floating dipenser. I ususally shock with 12.5% liquid Chlorine. I'm being told that Cal-Hypo shock (granular) would make my chlorine levels stay normal longer by Leslie's.
My Readings (pool looks clear).
I'm losing my chlorine readings overnight. I keep adding 12.5% (gallon) Chlorine daily(early morning) and find my Chlorine levels to be very low in the A.M. The pool is in direct sunlight 6-7 hours a day.
My Filter (Cartridge) runs 9 hours daily (Proline model).
My Android pool app Simple Pool Pro keep telling me to raise my FC to 8.0 - 10.5 App also advises me to that CYA is high and pool needs to be drained 45%. But, safe levels of CYA is between 30-100 according to my Taylor test kit manual.
How frequently should I be testing for Chlorine and PH and CYA since that level is at 100? My wife has had pools all her life and she tells me that I only need to test once/per week (CL & PH only).
Any help or comments would be appreciated.