Aeration timing when lowering TA

[Copernicu]

Hi. As I understand it, the process of lowering TA involves lowering pH with chemicals and raising pH through aeration. I use 14.5% muriatic acid to lower pH, and I turn my strongest jet so it points upward to aerate.

My question is this: when should I turn the jet up? When I add in the acid or later? If later, how much later?

Thank you.

 

[Texas Splash]

First get the acid in the water and make sure it's mixed for a couple minutes. Then you can start the aeration. For best success, let the pH rise to 8.0 then knock it down to 7.0. That should have a good impact on TA.

 

[Jimrahbe]

C,

When I reduce my TA it takes me about two full days.. I start my aeration after the first dose of acid and I don't shut if off until I am done..

Keep in mind that lowering TA is an on going process.. I add acid about every three or four hours, over and over until the TA is a little lower than I want.. I usually start in the morning and do it all day the first day until bedtime.. and then I pick it up the next day and do it again all day.

For reference my aeration is a waterfall, so I suspect that provides more aeration than a pool return.

At first the TA will barely move down.. but over time the amount of TA decrease will increase with each acid dose..

Thanks,

Jim R.

 

[Nikilyn]

C,

When I reduce my TA it takes me about two full days.. I start my aeration after the first dose of acid and I don't shut if off until I am done..

Keep in mind that lowering TA is an on going process.. I add acid about every three or four hours, over and over until the TA is a little lower than I want.. I usually start in the morning and do it all day the first day until bedtime.. and then I pick it up the next day and do it again all day.

For reference my aeration is a waterfall, so I suspect that provides more aeration than a pool return.

At first the TA will barely move down.. but over time the amount of TA decrease will increase with each acid dose..

Thanks,

Jim R.

Is a waterfall or an actual aerator sprinkler better? We have both.

 

[Texas Splash]

Is a waterfall or an actual aerator sprinkler better? We have both.

Either or both at a time should help to increase the pH.

 

[Copernicu]

Thank you to everyone for your help.

 

[Wntrequinx]

Can you actually get the pH up past 7.5 with aeration? I thought that or 7.6 was the max it would go based on the normal atmospheric co2 ratios, and so it would take days to get from 7.4 to 7.6...

7.0 to 7.2 takes me an hour or two, 7.2 to 7.4 took me more than 6...