Co2 for ph

Aimbdd

0
Jun 21, 2017
26
Broomall PA
So if my fill water has a low ta, 20 ish, and I can get co2 for basically free, is there any reason not to use co2 injection instead of acid? I’m not a big fan of handling acid, or having an acid pump in an enclosed shed where my pool equipment is. For whatever reason, my ph has to be adjusted every 3-4 days, so I’d like to automate it this year. (I’ve tried keeping my ta at 60, as well as at 90. Neither really helped)
 
Note that CO2 does NOT remove TA. So if you are adding fill water due to evaporation, and that fill water has significant TA in it, you will need to use acid to remove the TA.

 
Note that CO2 does NOT remove TA. So if you are adding fill water due to evaporation, and that fill water has significant TA in it, you will need to use acid to remove the TA.

My fill water has very little ta. As I add so much acid currently, it’s almost a game, add acid, add baking soda. I’m not sure why, but my pool really likes to hang out at a ph of 8.
 
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Stop adding baking soda and let your water find its pH/TA equilibrium point.


CO2_Out_of_Equilibrium.jpg
 
Note that CO2 does NOT remove TA. So if you are adding fill water due to evaporation, and that fill water has significant TA in it, you will need to use acid to remove the TA.

What is considered high TA in fill water? Asking as I’m debating between CO2 & Acid feeder.
 
What is considered high TA in fill water? Asking as I’m debating between CO2 & Acid feeder.
High TA is over 100-150. That is where TA can cause scaling of SWGs and other problems.

You treat high TA if it is causing problems and that depends on the pool and equipment.
 
I have chased the high PH low TA for some time, PH would run around 8 and TA would run 30, if I raised the TA the PH would also raise, add acid to lower the PH Ta would also lower. I added a CO2 feeder about three years ago, now I use all three and I'm able to keep PH between 7.4 - 7.6 TA between 80 - 90 I'm using 90 percent less acid and no bicarb and the cost of the CO2 is minimal now that it's up and running. The cost of setting it up with (2) CO2 regulators and the tank were a little bit of an investment but it was definitely worth it. I also was able set up with a CO2 distributer who fills the tanks for several restaurants near me at a great price.
 
I have chased the high PH low TA for some time, PH would run around 8 and TA would run 30, if I raised the TA the PH would also raise, add acid to lower the PH Ta would also lower. I added a CO2 feeder about three years ago, now I use all three and I'm able to keep PH between 7.4 - 7.6 TA between 80 - 90 I'm using 90 percent less acid and no bicarb and the cost of the CO2 is minimal now that it's up and running. The cost of setting it up with (2) CO2 regulators and the tank were a little bit of an investment but it was definitely worth it. I also was able set up with a CO2 distributer who fills the tanks for several restaurants near me at a great price.
Yeah, that sounds exactly like my problem. I also can source co2 for super cheap with exchanges.
 

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