I opened my pool on May 31st and continue to have some issues.
1st my numbers
Alkalinity - 100
CYA - 25
FC - 2
PH - 7.1
Results are based on the TF test kit
My water is crystal clear but seem to be having issues with chlorine consumption and PH.
Last night I superchlorinated with one bag of shock that brought the FC to 5 ppm and CC to 0. Additionally, I added 16 oz of Borax to raise the PH from 7.1 to 7.2. This morning I checked and had FC of 2 ppm and PH of 7.1. I added an additional 40oz of Borax and went to work.
Is this the beginning of an algae problem? Is the shocking affecting my PH? Vice Versa?
My plan of attack will be to bring chlorine levels back up to 10PPM tonight and see if it holds overnight. Test PH and adjust if necessary. Any other suggestions?
On a different note:
1- Clorox is on sale at K-mart - 2 96oz jugs for $3.
2- I thought I noticed that the clorox advertised calcium hypochlorite. I thought it was sodium hypochlorite. Any difference?