I have a 25,000 gallon salt water pool that I need to typically add about a half a gallon of acid every 4 days and I was wondering if this is normal with SWG pools?
Continually adding muriatic acid to my salt water pool. Is this normal?
- Thread starter Hyflyer450
- Start date
- May 3, 2014
- 62,705
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Welcome to the forum!
Can you post up a full set of test results.
Normally a SWCG does push pH up due to aeration. Do you have other sources of aeration? Such as spillovers, sheer descents, bubblers, etc.
What is the pH and TA of your fill water?
Is this a new pool? New plaster?
Glad to have you on the forum.
Can you post up a full set of test results.
Normally a SWCG does push pH up due to aeration. Do you have other sources of aeration? Such as spillovers, sheer descents, bubblers, etc.
What is the pH and TA of your fill water?
Is this a new pool? New plaster?
Glad to have you on the forum.
Short answer: maybe.
Gut feeling: normal. Your refill water is probably high in TA. That, plus the SWG will conspire to drive pH up. Add a spa or a waterfall and it will get worse. And if the plaster is less than a year old, you've got the perfect storm.
Your pool is pretty big. Proportionately, you aren't using much more acid than I am, and I have minimized the spa aeration and I don't have a SWG.
Gut feeling: normal. Your refill water is probably high in TA. That, plus the SWG will conspire to drive pH up. Add a spa or a waterfall and it will get worse. And if the plaster is less than a year old, you've got the perfect storm.
Your pool is pretty big. Proportionately, you aren't using much more acid than I am, and I have minimized the spa aeration and I don't have a SWG.
For reference I have a 26000 gallon SWG pool that is brand new plaster pool. Here are my levels.
FC 7 to 9
PH 7.6 to 7.8
TA70
CH350
CYA70
Those are the levels I maintain consistently. I add 20oz muriactic acid every 3 days. By day 3 the PH just barely reaches 8 and slip the 20oz in. Re test an hour later and bam back to 7.6. That is how my pool has been. We have no water features. I run our pool 24/7 at 2000rpm and the IC40 is set to 40%. At these levels my pool has been incredibly easy to maintain. 20oz acid every 3 days and let mr robot run daily. Crystal clear soft silky water that feels great!
- May 23, 2015
- 25,708
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
It's a new plaster pool, pretty typical. Your acid demand will be high for a good 6 months to a year, then it will start to level off.
What is the pH, TA and CH of your fill water?
What is the pH, TA and CH of your fill water?
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