Pool water looks clear and blue until I start raking, vacuuming and brushing the plant debris and fine dirt off the bottom and sides of the pool. Did the overnight FC drop test yesterday and FC dropped from 6.0 to 5.5 so I don't think it's algae. Using liquid chlorine and had been using some tabs b/c we just resurfaced last year and had fresh low-CYA water but will be de-pucking now that CYA is around 40
Numbers from this a.m.:
CYA between 40 and 50
We have a Hayward 244S sand filter. Sand was changed about 3 years ago. Any tips on getting the dirt out? I saw a few other posts that mention using the garden hose to clear up channeling and stuff - could someone pls. describe that process in a bit more detail? Thanks!