I finished the shock process on 8/25. cya 65ish, CC either .5 or less. My question is loss since then
FC 6.5 took back to 10
FC 3.5 took back to 10, closed pool a bit later
Today the pool had royal blue auto cover on until 1:30pm. 2 hours later checked FC was 6.
is this normal?
Also cleaned out pump pot looked in the chlorinator(has been empty for weeks) there was a sludge in it? residue from the sticks? had it really cranked up before.