It is getting close to closing time, so after a couple of very sunny month's I have been testing and trying to keep water balanced with pretty good success. However I have been wondering about Alkalinity? It has been between 150-170 all month, when I read about ALK in Poolschool it says not to lower just to reach a target. Non of the symptoms for lowering are apparent in my water. I will post my last test results and maybe someone can advise if I should deal with anything in particular before closing?
CYA-60-70 (we know the grey in that test :>))
I have been adding Ph up through the summer, seems like it falls to 7.2 every couple of days and I raise it to 7.4, not sure if this is okay or if I should try to get it higher? Have been vacuuming on drain in an effort to bring down Alk and CYA but not happening, tap water here very low Alk.
Have used pucks for about 10-14 days over the summer when away.