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Checking out subscriptions
19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School
so, did it work?
8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
"Shock" is a process, not a product!
Nope, subscriptions don't appear to be going through. I am continuing to investigate.
Hum, a little slow but it works eventually.