TA crept up; aeration not lowering PH much

[Whidster]

When we started we had a high TA: 220. We got it down to 60. In the last 6 weeks or so it has crept back up to 90.

I did the same process as before: aeration to raise PH, then added MA to bring TA down.

My TA is now 80. I think I read that 70 is ideal for a SWG pool.

We still have the aeration going, but the PH seems stuck at about 7.2 for about 36 hours now, even after swimming 5 dogs and 3 people (lots of splashing!).

My other numbers are ok. Working on adjusting the SWG to get the FC where I want it. Right now they are:

FC: 7.0
PH: 7.2
TA: 80
CYA: 75

Any suggestions? How am I doing with my water balancing for the new SWG? Any numbers you'd tweak? I'm inclined to run a tad high on the FC because we swim the dogs daily.

Thanks!

 

[257WbyMag]

Based on what you have described, I wouldn't change anything. It's a good idea and no harm at all to run the FC a little higher due to the dogs use of the pool.

The lower the TA, the more slowly your pH will rise with aeration. I wouldn't worry about your TA at this point. 80 is ok. 70 may be better for you but it sounds as though your pH is holding nicely despite the TA being 80.

 

[dmanb2b]

Yup, if with TA at 80 your PH is stable...leave it

 

[Whidster]

Thanks everyone! We are really happy with the SWG: it is running for 12 hours (its on the same line as our solar so its running for longer) at just shy of 10% and maintaining the FC beautifully!

 

[Ohm_Boy]

The reason for choosing a lower TA is to keep the ph from rising too rapidly. Sounds like you hit the mark.

 

[Whidster]

I guess I never fully understood the reason for the lower TA. That's a nice clarifier, thanks!