Hi All. We just bought a house with a pool (our first pool) and I've been spending a lot of time on this site to learn how to take care of it. I finished my first set of tests and am a little confused by some of the results.
CYA 0 (I think)
I was surprised by the CYA and CH results so I repeated those tests a few times and got the same results each time. For the CYA test I assume it is zero. The dot never disappeared and never even got hazy. I ran the test on the 50ppm sample from TF Test Kits a few times to practice and got in the 50-60 range so I think I was doing the test correctly.
CH also surprised me as we're in Chandler, AZ and I believe we have high levels of calcium in our tap water. The house has a water softener so I also tested some of our tap water and it was 175. I Also tested some tap water from an outside hose that I assumed was not going through the softener and it was 200.
The water is clear and the pool looks good other than some scale around the water line (which added to my confusion about the CH test results).
A couple of questions:
1. I have calculated the amount of CYA and muratic acid to add with Pool Math. I assume I need to get my pH in range, aerate to raise the pH and repeat until the TA and pH are in range. Is that correct?
2. Does anyone have any thoughts on the CH results? According to the recommended levels I should add calcium to the pool but I'm reluctant to do that until I know if I'm possibly missing something with my CH test results.
Thanks for any assistance!