retested this morning - add 3.5 jugs of bleach last night before going to work - ran filter all night - think it rained some too.
FC 43.5
CC 2
pH 8.0
CA+HARDNESS 200
TA 150
CYA 80
I have not had chance to do DE test as I worked nights all this weekend - gonna try to today or tomorrow morning. sand might be coming from yard and deck as it is not by all the input areas - just stairs. If filter needs sand changed and laterals replaced - how difficult is this? algae is now more of a brown gray color - still disappates into a cloud when brushed. Do I just need to continue with the bleach at night? Anything else I might try? So want to have kids swimming soon.