Just changed my water in my 400 gal spa. After I filled it up I did a CA hardness test w my Taylor testing kit and got a reading of 30 ppm.
I added about 6 oz of CA increaser last night and when I tested it today I couldn’t get any reading of calcium? When I added the Reagent the water wouldn’t even turn red so CA was not even present today. I just added 5 more oz of CA increaser today.
what would make the CA hardness go down?
I added about 6 oz of CA increaser last night and when I tested it today I couldn’t get any reading of calcium? When I added the Reagent the water wouldn’t even turn red so CA was not even present today. I just added 5 more oz of CA increaser today.
what would make the CA hardness go down?