I have been heating my pool to keep it swimmable to build and work out the kinks of a pool tree system to keep the water draining off the cover so that I dont have to pump it off and end up with muck on top of it through the winter. Im now pushing the envelope for this area to keep it open any longer and think I have the pool tree set (I HOPE). My water seems ok and I am loosing about a point in FC overnight with les than 0.5 cc and CYA =70 and TA=90 and Ph=7.5. The FC was 6.5 this morning down from 7.5 late yesterday. The pool is covered and not getting any light.
My question is should I bring the pool up to shock levels for 24 hours and then close it or just close it now? Thanks for the advice.