Threadless return fountain/aeration

mikewatson

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Mar 27, 2021
10
Tulsa, OK
Pool Size
30000
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Plaster
Chlorine
Liquid Chlorine
I have a 30,000 gal gunite pool with 2 threadless 1/2” return lines. My TA number is 120 and the suggestion is to reduce pH with acid and then aerate. How do I aerate if my return lines aren’t threaded? There are holes drilled in the plaster where the return lines are at about a 45 degree angle. I’ve put my finger in there to try and feel pvc, but i can’t get far enough back to feel it with my finger. Any suggestions on how to get a fountain hooked up to this beast?
 

cowboycasey

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1/2 inch, should be 1.5 inch.. is this a new or old pool?
 

mikewatson

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Mar 27, 2021
10
Tulsa, OK
Pool Size
30000
Surface
Plaster
Chlorine
Liquid Chlorine
Old pool. Built somewhere in the 80’s according to the pool guy that looked at it. B1541D9A-8838-4879-B331-606D98ED5038.jpeg
 

cowboycasey

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Ok, The wild wild west :) Hmm, not sure how to get that going... Some have done air from a tank/air compressor... you could actually do a solar pump fountain setup...

This one would do it, I have to warn you, I do DIY.... :)

1622855266448.png
 
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mikewatson

Member
Mar 27, 2021
10
Tulsa, OK
Pool Size
30000
Surface
Plaster
Chlorine
Liquid Chlorine
Thanks everyone for the suggestions. Is there anyway to lower TA without aerating?

How long to lower TA using one of the diy solutions on a 30k gallon pool?
 

mknauss

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May 3, 2014
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Laughlin, NV
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Acid lowers TA. The aeration is used to raise the pH so you can add more acid.
 

proavia

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Feb 6, 2015
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Chandler AZ
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Lower your pH to 7.2, allow the pH to climb on its own, lower to 7.2 again.
With a TA of 120, your pH will rise on its own. Each time you add acid, it will lower the pH and reduce the TA a little. Eventually, the TA will get down to where you want it. There is really no need to force the TA down to some magic number.

What is the TA of your fill water? If it's really high (200+), it may take aeration to reduce it. But that will be an ongoing issue as you continue to add fill water due to evaporation.
 
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