Optimum Levels?

[Watermom]

PH 7.2-7.8
Alk 80-125
CH not needed in a vinyl pool, but definitely not over 500
CYA 30-50
Chlorine - depends on your cya reading

Hope this helps.

Watermom

[jen in tx2]

Thanks soooo much! That is just what I needed!! It is all coming back to me the more I read through here... SLOWLY! I will post my readings as I take them

Thanks!
Jen
(formerly Jen in Tx, now Jen in Tx2)

[jen in tx2]

OK, yesterday when I tested this is what I came up with....
TC = 5
Ph = 7.2
Alk = 75
CYA = 55

Today (about 20 hours later) my readings were...
TC = 4.5
pH = 7.0

Now I know I need to bring up my pH, I have added about 1/2 box of Borax total and no bleach since I first filled it up.

[Watermom]

Other than your ph being a little low as you already know, everything looks fine. After you add the Borax, let it circulate a few hours. Then retest and redose til you get it to 7.4-7.6.

Watermom

[PoolParty]

Great post, thanks for the numbers. I just opened my pool, do you guys/gals think 135 is too high for alkalinity? My pH was 7.6. Thanks!

[mwsmith2]

135 is fine.

Michael