PH rising

[jstblush]

Hi All,
Just checking before I add anything to my sparklie pool. My Ph has slowly been rising. The dates and numbers are below:

6/20 7.5
6/27 7.6
6/29 7.8
7/6 8.1

And here are my other numbers:

FC 6.5
CC 0
TA 80 this is where we started the season so no change here
CH 75 started the season at 100 so a 25 drop
CYA 40

So do I just add acid and is it this percent (Hydrochloric acid, 20° Baume (31.45%)?
Don't know why it's drifting up, but it is.

Thanks so much!
Sherry

 

[Richard320]

pH rise is normal. A bunch of swimmers can aerate the water enough to push pH up.

Plug your pH, TA, pool volume and acid strength into poolmath and it will tell you the dose. Target 7.4.

 

[jstblush]

Thank you for the quick response! Do our other numbers look okay to you? Pool is clear and sparklie! CH went down a little since opening pool. Also just raised CYA from 30 to 40 and thinking about raising it to 50 to use less bleach in this hot 100+ desert we live in!
Sherry

 

[Richard320]

Thank you for the quick response! Do our other numbers look okay to you? Pool is clear and sparklie! CH went down a little since opening pool. Also just raised CYA from 30 to 40 and thinking about raising it to 50 to use less bleach in this hot 100+ desert we live in!
Sherry

So far.

 

[jstblush]

Awesome!
Thank you so much, Richard!
Sherry

 

[jstblush]

Oh...one more question. Does the acid stay good longer than bleach or should we just try to buy the exact amount we need?
Sherry

 

[Richard320]

Oh...one more question. Does the acid stay good longer than bleach or should we just try to buy the exact amount we need?
Sherry

Acid lasts a long time. Years. The jug will get brittle long before the acid inside goes bad.

 

[jstblush]

Okay, great that it lasts. The only thing is, Bill bought a product called Klean Strip Green and it says it has 90% less fumes. I don't see a percentage on the bottle, but in the question and answer section it says it is 20% and 13 degrees baume. Is this okay to use or does it contain other stuff? The bottle has no info on it about that. I know it will just take more, but want to make sure before I put it in the pool that there is nothing else in it.
Thanks,
Sherry

- - - Updated - - -


Here's the link.
https://www.walmart.com/ip/Klean-Strip-Green-Muriatic-Acid-Gallon/20531315
Thanks,
Sherry

 

[pookiesunshine]

Sherry, it is just weaker; i did not see any other ingredients so should be ok. just be sure to choose the right concentration in poolmath, but you seem to know about that already.

 

[jstblush]

Thanks pookie. That's what I thought but just wanted to check.
Sherry
P.S. Love your screen name.

 

[jstblush]

Great. All the different concentrations in pool math except for the one on the bottle we have. So trial and error, here I come. :blah:
Sherry

 

[pookiesunshine]

you can interpolate or just use the 10 degree, 16% amount, add and recheck pH. i always use less than the calculated amount (except chlorine) so i dont overshoot. learned the hard way.
ps. thanks!