I plan on opening the pool next week. Today I tested my water for the very first time using Taylor 2006k test kit. The water is not mixed, I just wanted to get some preliminary readings so I could have everything I need on hand next weekend. Here are the results:
PH: 7.3 (~7.25)
Temp: 53 (I know )
I'm wondering what results could be affected by water not being circulated before tested. In other words, what should I retest next time right before I open the pool? I'm pretty sure that I don't need to test chlorine. How about CYA? CH? I assume that I would need to retest PH/TA, right? The winter cover is still on.
It looks like the only thing that is off at this point (besides the chlorine) is PH. I'm going to use borax to bring it up.
I plan on using mostly cal-hypo for chlorination due to convenience, lots of rain and very soft fill water. I will use trichlor if/when I'm away or when I need to bring CYA up. If my numbers get too high, I might switch to bleach.
Since cal-hypo is alkaline, should I bring PH to lower level of the proper range? Say 7.5 and let it drift up with cal-hypo use? Will the rain try to bring PH down?