I've had a pool for about a month, this site has made maintaining it extremely easy so far, Thanks!!
I appear to have fiberglass steps going down into my vinyl pool. The caulking between the two seems to be wearing off and I see what appears to be green moss and some black stuff. My CC is .5 and the water is as clear as I've ever seen it, but the caulking has me concerned. Should I scrub it the best I can and then try sealing it with some silicone or something? Does that work under water? or do I wait until closing time and drain the pool... 15K gallons...
Any advice would be super!!
My number atm are (some of them aren't perfect, but I'm working on it) -
CC - .5
TA - 220
PH - 7.6
Cal - 460
CYA - 20