Also, don't use soda ash to bring up your PH, it will also affect your TA.
Use aeration or 20 mule team borax to bring up your PH without raising the TA.
Keep your chlorine shock level up - may have to keep it up for 2 or 3 days. Depending on your CYA level you may have to keep it higher than you think to combat CC and raise your FC.
Here is a link to a good chart as to the levels. Scroll down to about the 4th post on this link. It shoes level of CYA(stabilizer) and what your FC min/max and shock level needs to be.
troublefreepool dotcom/viewtopic dot php?t=592&highlight=bens+guess
can't get rid of CC
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