I just looked at that this morning. I know it's simple but I think my eyes are crossing while I'm staring at it.
New SWG and pH is on the rise
- Thread starter steve1969
- Start date
steve1969 said:
NEVER pour muriatic acid in the skimmer, either pour it slowly in front of a return so it mixes or predilute it in a 5 gal bucket of water and broadcast that into the pool. The TA lowering process needs to be repeated over and over until the TA drops. At first it seems to have no effect and then you start to see things moving. Did you test your water about 30 minutes after adding the acid? If not you might not have lowered the pH as much as you think you did.
Hit 80 on the TA this afternoon, almost there.
I do have a question though. Does lowering the TA or adding acid effect the CYA tests at all. I checked it today and it appears to have dropped since I checked it last week.
I do have a question though. Does lowering the TA or adding acid effect the CYA tests at all. I checked it today and it appears to have dropped since I checked it last week.
No, only water replacement, CYA reducer (too expensive to be practical), or long periods without chlorine (only works sometimes) can change the CYA level.
I didn't check pH after adding the acid last night. I will try that tonight. The pool calculator says 32 ounces for my pool (one quart) to lower pH from 7.7 to 7.2. If TA only drops by -8 with this addition, I'm going to need a lot more muriatic acid to drop my TA by 50ppm. Here are my questions which I'm still slightly confused about:
How long after adding the acid can you swim in the water?
Will the pH keep rising back up on its own?
What is the aeration doing?
Should I be adding acid more than once a day?
Thanks for the help. My pool was trouble free for the month of May. I balanced the water perfectly for the SWG, turned it on, and boom - the pH rose. Other than that, everything is still cool.....
How long after adding the acid can you swim in the water?
Will the pH keep rising back up on its own?
What is the aeration doing?
Should I be adding acid more than once a day?
Thanks for the help. My pool was trouble free for the month of May. I balanced the water perfectly for the SWG, turned it on, and boom - the pH rose. Other than that, everything is still cool.....
This link might be more helpful to you than the pool school article.steve1969 said:
how-to-lower-ta-t5341.html
Thanks Waterbear - you know I read that post of yours on how to lower TA about two months ago when I first found this website and was converting from Baquacil. I even printed it out. Of course, it's in a drawer somewhere and I forgot about it....
At the time, I had bigger fish to fry converting from Baquacil to chlorine.
Thanks again.
At the time, I had bigger fish to fry converting from Baquacil to chlorine.
Thanks again.
Well, I did a full set of numbers this morning.
PH 7.2
TA 80
CYA 65
FC 3
CC .5
CH 220
Looks like I've done some good getting into the recomended range on everything.
I'm still making bubbles with the jet to try and get the PH moving up some.
It's taken me a week to get the TA from 120 down to 80 using a Gallon and 1 Quart of acid total.
PH 7.2
TA 80
CYA 65
FC 3
CC .5
CH 220
Looks like I've done some good getting into the recomended range on everything.
I'm still making bubbles with the jet to try and get the PH moving up some.
It's taken me a week to get the TA from 120 down to 80 using a Gallon and 1 Quart of acid total.
I'm a few days behind you I think - I've only put in two quarts of acid and even though my pH dropped to 7.2 last night (and back up to 7.5 already this morning), my TA test still took 12 drops to turn red. It might be 115 or so, but still hasn't really made a move down from where I started.
Post again in a few days - I'd like to know if your pH stabilizes now, or if this is going to be a constant battle with the acid...
Post again in a few days - I'd like to know if your pH stabilizes now, or if this is going to be a constant battle with the acid...
I plan on doing just that.
I start nights tonite so I plan on checking the PH in the morning.
I start nights tonite so I plan on checking the PH in the morning.
Checked a few things this morning. No airiation since yesterday morning,
pump and SWG off since 7:00pm last night.
FC .5
CC .5
TA 70
PH 7.4
pump and SWG off since 7:00pm last night.
FC .5
CC .5
TA 70
PH 7.4
Ok, skipped a day of testing.
Today got these #'s
PH 7.4
FC 1
CC .5
TA 75 I'd say. Almost turned at 7 drops.
Now that this is about lined out I need to work on the FC numbers I've been getting.
After reading alot of posts on here I think I need to shock the pool one good time.
We never did shock it after getting it going and we had to wait a week before the SWG got going because the first one we had didn't work. I'm going to do that this week.
Today got these #'s
PH 7.4
FC 1
CC .5
TA 75 I'd say. Almost turned at 7 drops.
Now that this is about lined out I need to work on the FC numbers I've been getting.
After reading alot of posts on here I think I need to shock the pool one good time.
We never did shock it after getting it going and we had to wait a week before the SWG got going because the first one we had didn't work. I'm going to do that this week.
Shocked up to 16ppm lastnight and it dropped to 10ppm this morning, so I guess I was right about needing to shock. Sure have learned alot from this board.
Still can't figure out why the cya #'s are all over the place.
Still can't figure out why the cya #'s are all over the place.