Testing/adding FC at 2-3 hour intervals. Was gonna be away most of the day yesterday so I spiked it up to 33FC, and she stayed above shock level for 24 straight hours…tested at 23 this morning.
When I’m home, I just add about 1 cup of chlorine every hour and test every 3 or 4 hours. No doubt in my mind that we’ve been over shock level for the past 48-72 hours straight.
I was cleaning the filter once a day regardless of pressure. Just cleaned at 18psi (16psi clean), and I think I’m going to start cleaning the filter two or three times a day.
Old filter was sand, and there were close to 4 or 5 cups of sand in the filter tank over the course of this process so far…looks like it was blowing sand into the pool for a little while. I purge the sand every time I clean the cartridge.