Acid eating beauty....

molardog

Well-known member
Jun 13, 2016
62
Locust Grove, GA
#1
Hey everyone....second season with the pool now and have had nothing but crystal clear water from day one since becoming a TFP follower....

Yet, I can't seem to get a handle on the pH. It wants to stay high all the time no matter how much acid I feed it. TA is right at 100 at the moment, but have always kept it in the 80-100 range. All other chemistry is normal range.

This is a 42k gallon swg gunite/quartzscapes finish built last spring. Am I doomed to feeding this thing a gallon of acid per day for the rest of my life?


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OTPirate

Admin
In The Industry
Oct 2, 2013
1,330
Creedmoor, NC
#2
That's a lot of acid. What are you trying to keep your pH at? My pool loves to be at 7.6-7.8. So, I let her hang out about 7.6 and try not to force her to be 7.2. What is your water source?
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
10,488
Bedford, TX
#6
MD,

When you add MA are you shooting for 7.2 or 7.6? Most saltwater pools like their pH around 7.8...

Lowering your TA, using the link that OTPirate provided above, works well for me...

Jim R.
 

duraleigh

Admin
Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
31,321
Sebring, Florida
#9
Lower your TA down to 60-70 before borates. See what that does. Then, if you still struggle with pH, try the borates.

You should get a good kit.....how old is yours?
 

molardog

Well-known member
Jun 13, 2016
62
Locust Grove, GA
#10
Lower your TA down to 60-70 before borates. See what that does. Then, if you still struggle with pH, try the borates.

You should get a good kit.....how old is yours?
Added two gallons of acid this morning and pH is now at 7.6 and TA at 80....

Gonna add another gallon and see how that goes. The kit I have is less than 12 mos old.



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WyattEarp

LifeTime Supporter
Jun 28, 2015
109
Mandeville, LA
#11
My pool is about the same age. The acid demand slowed down a lot once I got TA to 60. Also as said above it seems to like to ride at 7.8 so I only knock it down to 7.6 when adding acid.
 

The dog

Well-known member
Apr 17, 2017
147
sacramento CA
#14
My swg pool rides right around 7.8 like JR said above. I've been trying to reduce my TA from 140 to 70 by getting my ph to 7.2 and aerating. It's just not working for me. So I'm just moving on and living with it.


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triptyx

TFP Guide
Apr 12, 2016
1,485
Tucson, AZ
#16
I read it as 7.6 as well OTPirate.

MolarDog - start by lowering your TA to around 50 as recommended above. Do that in conjunction with keeping the pool around 7.6-7.8 and I think you'll find your acid demand drops quite a bit.
 

pooldv

Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
Aug 10, 2012
24,993
DFW, TX
#17
I read it as 7.6 as well OTPirate.

MolarDog - start by lowering your TA to around 50 as recommended above. Do that in conjunction with keeping the pool around 7.6-7.8 and I think you'll find your acid demand drops quite a bit.
:goodpost: +1 to lowering TA to 50 or 60.
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,079
Evans, Georgia
#18
Keep in mind your pool is also still kind of "new" and some will take a year or so to finish curing.

Don't try borates until after your TA/pH have been stable a while. If you do it too early they become harder to manage if you need to change something.

Maddie :flower:

(and I know you didn't ask but... you need a FAS-DPD tester. So you can test chlorine >5ppm)
 

molardog

Well-known member
Jun 13, 2016
62
Locust Grove, GA
#19
Thanks everyone. Gonna go buy a pallet of acid from home Depot and conquer this TA....still reading 90 and pH has already crept back up to 8.2 as of this evening.

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