My water has been testing great all summer - ph is always at 7.4 alk at 90 cya is 35 chlorine levels I keep on yesterday I checked my ph and it's like 7.8-8.0 but my alk is still at 90 what would make that rise? I am waiting for some new regents to come in - my ph regent is very low and it's from last summer and wonder if maybe that could be throwing it off ?? Also they are adding on to a new subdivision across street and have been kicking up dirt - wonder if that would have any play into it? I am constantly battling dirt in my pool my cc is at 0 so I don't think it's algae at all