High Ph yet Low Total Alkalinity - now what?

[Watermom]

Good post above, Ben. Very clear explanation that will probably help a lot of people better understand pH and Alk.

[PoolDoc]

thx.

[Bubbles]

Great explanation & info! Many thanks!

Update: luckily I waited till I heard back. Glad I did. We had a few days of serious ran (4+") here in the Balt. Wash. area. My Ph dropped to 7.0 - 7.2 from 7.8 but I did add two 4lb boxes of baking soda. Numbers seem pretty good now. Ph is 7.4 & TA is 90. FC has slooowly dropped to about 7.5 ppm. No CC. I guess the water was pretty free if organics. Cya is up to about 30. Calcium hardness up to 320.

I guess it's best to leave well enough alone for now. Water is crystal clear. Thanks again for all your expert help.

Charles

[Watermom]

Looks pretty good. One comment I would make is that your calcium hardness is climbing pretty quickly. I assume you are shocking with cal-hypo. You want CH to be between 200-400. If it gets too high, you can have issues with cloudy water. So, you may want to switch to liquid chlorine at some point.

[Bubbles]

Thanks for the I input Watermom. Is Clorox bleach ok? Right now I have my chlorine tab dispenser turned off till the FC drops more.

Charles

[Watermom]

Yes, as long as it is plain bleach. No scented stuff, etc. Actually many of us use Walmart's generic bleach which is cheaper than Clorox.