OK, I drank the kool aid and ordered one of the recommended test kits (should arrive by Thursday). However, I still wanted to keep the chemicals at decent levels so I pulled out the trusty test strips. My TA was way low, so having some "Alkalinity Up" product left, I sprinkled some into the pool. Bad idea. Now I have white spotting (lots of it) where the chemical settled and when I try to sweep it to get it to dissolve, nothing happens. Have I just ruined the finish of my fiberglass pool? Help, please.