Just ran multiple tests with my new TF-100 kit. (First Time). I've been having an on/off problem with algae--brushing takes it away but it returns rapidly. Daily BASIC TESTING results have consistently given high level for CL and also have had constant high PH. I add muriatic acid 2-4 times per week.
Today's test shows CL low AT .5 and PH at 7.8 I need some help on what to do immediately instead of simply dumping in chlorine.
15,000 gal pool, 30y/o, plaster finish.
Variable speed pump.
Current pool temp 77 deg.
Any helpful response will be greatly appreciated!