I'm new to the forum. Had pool installed 5 years ago. Currently, in process of partially draining and refilling my pool based on pool company #3 recommendation due to high nitrates based on their read. Hopefully right decision.
Think so because two years ago went through a similar nightmare with different pool company during opening no chlorine reading after 3 lbs of shock...no chlorine..added 6 lbs of shock...no chlorine added 8 lbs of shock...fired pool company #1! Moved to next pool company told me my phospates were high...added phos free remover...vacummed..added more vacuumed...still couldnt hold chlorine. Fired pool company #2! Pool company #3 said CYA was high recommended draining/refilling pool...It worked!
Why does this keep happening? Hopefully partial drain (50%) and refill will resolve. Here are my readings from pool store which provided print out. FYI...Opened pool 1 week ago with start up chemicals no chlorine. Filled up chlorinator two days ago put dial to max no chlorine reading. Shock pool yesterday with 2 lbs of super shock..this morning no chlorine reading!
IG Vinyl Pool; 25K; Sand Filter;