I came home today and tested my water. Pool was clear. But I've been having trouble keeping the chlorine levels up, and found my chlorine levels near zero, even though I put (2) 128 oz. 10% bottles and (4) 3" trichlor tabs in the strainer just yesterday.
So I added three more bottles of 128 oz./10%, and also a box of Borax as I've had to add stabilizer to get my CyA up a bit, which pushed my pH down.
Suddenly I look out, and am now watching the water turn green by the minute!! Is it possible an algae bloom was on the verge with the chlorine levels near zero, and what I've just added in the last 90 minutes will take time to kill this bloom? Or could it be a chemical reaction of something else?? It's getting darker and darker as I type.
My readings right now are:
TCI - 10
Alk - 120
CyA - 50
pH - 7.6
TH - 400