I did several searches but not finding the exact information I'm looking for. Getting my pool in tip top shape for the season. I have a 19,000 gallon pool. My borates were at 22 and I wanted to raise them to 50. Pool Math said I should add a little over 10 boxes, I added 9 and 3 gallons of acid. (Divided in 3 applications.) This weekend I'm tackling calcium. My calcium is at 127 and I'm attempting to raise it to 250. Pool Math says 22 lbs. of calcium chloride. I plan on adding the 16 I have on hand and then retesting before buying and adding any additional. Question is, how long after adding borates and calcium should I wait to retest to get the most accurate result. I seem to recall it takes about a week for everything to fully dissolve for the test to be accurate.
Last edited: