HELP? in correcting CYA my TA is out of control, and adding SO MUCH Muratic Acid

[EllieWilliams]

All,
Medicall issue, had to resort to Tabs for almost a year - Emplty pool last weekend to drop CYA, worked 50 (ignore FC and CH-got that working very well). Problem is my TA is 170 and my PH is skyrocketing because of it, am dropping in 8 cups of Muratic Acid everyother day TA only dropping 10, PH climbs right back up to 8.3-4, which I would expect.
Any thoughts on dropping the TA easier than what I am doing?
link to MY TROUBLEFREE POOL Activity

any and all feed back welcomed, and thanks in advance for your consideration - Ellie, Houston, TX

 

[mknauss]

Lower Total Alkalinity

A lower Total Alkalinity level can help a pool owner stabalize their pH increase. We'll explain how to lower TA with a little help from muriatic acid.

www.troublefreepool.com

 

[EllieWilliams]

Apologies, tried the standard lower TA with lower PH then ariate, BUT, not 6-8 hours later, PH jumps right back up to 8.3-4, so add another 8 cups, and try again.... is this what it means? could take days, weeks, months?

 

[Sunnydaze]

Lowering TA is a slow process, especially if you don't have a way to aerate.

It took me a couple weeks to go from 120 to 60.

 

[mknauss]

You have to create a means to aerate the water vigorously if yo wish to speed up the process.

Why are you in a hurry?

 

[EllieWilliams]

hurry - can I swim in it like that, if PH is good? will it eat up my plaster?

 

[EllieWilliams]

Lowering TA is a slow process, especially if you don't have a way to aerate.

It took me a couple weeks to go from 120 to 60.

yike, yes, very slow.... not to mention the load of muratic acid going into it, even though it is lose quickly.

 

[PoolStored]

hurry - can I swim in it like that, if PH is good? will it eat up my plaster?

Swim. No it won't eat plaster.

 

[PoolStored]

Here is the trick with lowering TA.
1) Cycle your pH between 7.0 and 7.4. CO2 outgasses at the highest rate with this pH.
2) Make LOTS of VERY TINY bubbles.

I made this rig out of 1.5" PVC. 6-8 1/4" holes in the caps. Screw it on top of a sump pump, put it in a pail to protect pool surface and put it in pool and turn on.

I can lower TA by 10 in 12 hours, in a 30K pool. In a 10K pool like your, it will likely only take 4 hours.

IMG_0735.jpeg

• PoolStored
• Jun 26, 2024

Aerator.jpg

• PoolStored
• Sep 11, 2022
• 2

 

[Sunnydaze]

yike, yes, very slow.... not to mention the load of muratic acid going into it, even though it is lose quickly.

Test your fill water. It may be high in TA. My tap water is about 120ppm so I'm adding acid twice a week to keep pH and TA down.

 

[DrewLG]

not 6-8 hours later, PH jumps right back up to 8.3-4, so add another 8 cups, and try again.... is this what it means? could take days, weeks, months?

The rapid pH rise is actually an advantage, since it lets you add MA more frequently. Every time you add 8 cups, your TA drops by 10 -- so just keep doing what you're doing.

 

[EllieWilliams]

Swim. No it won't eat plaster.

swim I shall, with no worries of my plaster. Thank you so much for your help.

 

[EllieWilliams]

Here is the trick with lowering TA.
1) Cycle your pH between 7.0 and 7.4. CO2 outgasses at the highest rate with this pH.
2) Make LOTS of VERY TINY bubbles.

I made this rig out of 1.5" PVC. 6-8 1/4" holes in the caps. Screw it on top of a sump pump, put it in a pail to protect pool surface and put it in pool and turn on.

I can lower TA by 10 in 12 hours, in a 30K pool. In a 10K pool like your, it will likely only take 4 hours.

IMG_0735.jpeg

• PoolStored
• Jun 26, 2024

Aerator.jpg

• PoolStored
• Sep 11, 2022
• 2

well I need to get craftin one of those things, why cheaper than acid.... thanks for the inspiration and feedback. I can visualize that working now.

 

[PoolStored]

well I need to get craftin one of those things, why cheaper than acid.... thanks for the inspiration and feedback. I can visualize that working now.

Lowering Total Alkalinity (TA) Quickly with the Acid Aeration Method

Thought I'd make a post that might help others. We've had quite a few members this year with high TA, and I've been typing the same information over and over. I'm going to post this so I can link it to help others. High TA can cause rapid pH rise. High TA is typically caused by high TA fill...

www.troublefreepool.com

 

[mknauss]

Aeration does not reduce the volume of acid needed to lower the TA.

 

[EllieWilliams]

Lowering Total Alkalinity (TA) Quickly with the Acid Aeration Method

Thought I'd make a post that might help others. We've had quite a few members this year with high TA, and I've been typing the same information over and over. I'm going to post this so I can link it to help others. High TA can cause rapid pH rise. High TA is typically caused by high TA fill...

www.troublefreepool.com

appreciate it. not my first rodeo, but man I have never had such a high TA. The instructions are good, but I was not putting the time frame in reality, thought without the air would only take a few days as well, so when the other gentleman pointed out days, weeks, months.... I finally understood.... and I can still swim (if PH is withing range) and it won't eat my plaster.... thank you for all you feedback and your lesson learned, much appreciated.

 

[EllieWilliams]

Aeration does not reduce the volume of acid needed to lower the TA.

I'll just go slow, like I have - you are a wealth of information, thank you.

 

[EllieWilliams]

To All of You'all,
2 weeks to the day and numbers are perfect for 4 days - TA over 200, down to 90, PH stable at 7.6. It was the time issue, air or no air, it takes time. I need to learn patience... thank you again for all the input and teach this old dog more tickerts. Happy 4th.