Water Balance Question

[Cgmiller913]

Hello all,

New to pool ownership. I'm having some trouble with balancing my chemicals. I have a 27000 gal SWG inground vinyl pool. AK was a bit high so yesterday I added 10 lbs of Dry Acid.

FC - 6.8
CC- 0.2
PH - Test strip shows 6.8, Taylor test is 7.0
Alkalinity - 110
CYA - 30

My question is should I add more Dry Acid to lower alkalinity further? Also concerned about the yo yo effect. Once I get the alkalinity dialed in do I add PH up? FC was very high as well 10.0. I added some leslie's chlor neutralizer and I'm down to 6.8. Do I continue to add that until I get down to 5.0 for FC? I'm thinking to waiting until the Chlorine is dialed in before adding more CYA.

Sorry for the loaded post.

Thank you in advance!

-Chris

 

[Msch99]

You need a proper test kit before the experts can help much. Guess strips will have you jumping through hoops and messing things up. (Voice of experience) see link in my signature

Do not chase TA. Allow PH to rise to 8 or 8.2 ish, use pool math to lower ph to maybe 7.2ish no lower. As the ph rises and you dose with acid the TA will work its way down.



Add your pool info to your signature so experts can see itno need to neutralize CL,

waste money as sun UV will do the same thing. You can swim in up to slam levels for your cya.

Check out pool school for more info.

 

[Cgmiller913]

Hi Msch,

Those values were taken by the Taylor 2006c test kit. The Taylor kit only goes down to 7.0 on the PH test. I will increase the ph and not worry about the neutralizer.

Thank you for the help. I'll get that sig updated.

Cheers

 

[Richard320]

Just aerate. Turn everything on, point the returns up. If you need to add water, use a spray nozzle on the hose and blast the surface. No need to add any more chemicals. Aeration will raise pH without raising TA.

 

[Cgmiller913]

Thanks Richard

 

[IceShadow]

Also you don’t need to try to lower TA. It will come down on its own as you add acid when you need to lower the pH.

 

[LoneWolfArcher]

One other thing I've learned from the experts here. Only do half of what it says to do. Then retest. It is easier to adjust if the pH drops more than expected after treating with half.

 

[LoneWolfArcher]

Wrong thread.

 

[Mdragger88]

Welcome to TFP! ?? another suggestion is to use muriatic acid instead of dry acid when you need to lower ph in the future as the dry acid is not great for your cell. Here’s some reading to help u in your journey ABCs of Pool Water Chemistry

Recommended Pool Chemicals

Which should I buy? TFP's recommended pool chemicals are cheap, easy, and won't unbalance your pool water.

www.troublefreepool.com