I think I may be using to much fc through the day.
Here are my numbers last night.
Ph. 7.6 to 7.8 usually
These my numbers have been pretty consistent every night. Did drop test just stortly after sun up and fc was 8.0. That should be good but Everytime I check at midnight when I get off work its been 1.5 to 3. Should I be using this much. Pool gets no shade all day and have had. Several kids playing at night but only for 2 to 3 hour