Confused here if fc is 4 then shack at 12? What??? 12 what? thanks dave
best guess question
Confused here if fc is 4 then shack at 12? What??? 12 what? thanks dave
13000 gallon fiberglass, variable speed pump, cartridge filter, chlorine sanitized ,k-2006, also daily 5 item check ( ch, ph,ta,)
I only trust the k-2006 titration is better for me
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