will just 12% chlorine do it or do I need to start a shock program like a bag a day until its ch.12 or better?
Re: Little green on stairs
will just 12% chlorine do it or do I need to start a shock program like a bag a day until its ch.12 or better?
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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