Ok...pools been looking good but seems to have lost a bit of that sparklypoolitus it once had. Can't quite put my finger on it .... But recently noticed a few tiny blackish green spots in the beach area(pebble area) rubbed & came off. Algae? Not sure if pool is quite as "bright" as was a few weeks ago. Could I have algae starting? Here's numbers as of yesterday. I know PH needs lowering-added acid immediately. Have never shocked-should I, for good measure?
Ph 8.0 (always high as I don't stay on top constantly-ugghh)
Cya 20 (added more stable)