High pH and Total Akalinity

[bradde]

Just tested and put my pH at 8.4 as it was definitely over the 7.8 high mark on the test tube. Akalinity came in at 1600.

Pool Math is saying that I need to add 4 gallons of Muratic Acid. Does that seem right?

Also, when I used Leslie's for a few months when we first got a place with a pool, they always told me that I should only add 24 ounces of Muratic Acid at a time. What does TFP recommend in that regard?

 

[JoyfulNoise]

TA of 1600?? That’s not really possible unless you added a ton of baking soda to your pool.

How did you arrive at that value? What test kit are you using?

 

[Newdude]

TA of 1600??

That's the foulup right there.

8.4- 7.8, TA 1600, half strength MA is a skootch under 4 gallons.


The same parameters with TA 160 is 50 oz.

 

[JamesW]

PoolMath Logs

 

[JamesW]

You were at 100 last week; what happened to raise the TA?

Did you add 264 lbs of baking soda?

 

[bradde]

I apologize. Looks like I totally messed up and my TA should be 600, not 1600.
I'm using the Taylor K-2006C test kit. I'll enter the correct TA number and see what I get.
Do I have to limit how much Muratic Acid I add at one time?

 

[JamesW]

How did it go from 100 to 600?

 

[Bperry]

I apologize. Looks like I totally messed up and my TA should be 600, not 1600.
I'm using the Taylor K-2006C test kit. I'll enter the correct TA number and see what I get.
Do I have to limit how much Muratic Acid I add at one time?

Your TA is not 600ppm, test it again (not at Leslie’s though)

 

[bradde]

I'm an idiot again. Just ran the TA test again and got 110.
Apparently I was confused and mixed up the TA with results from another test.
Really sorry to waste everyone's time.

 

[Newdude]

Really sorry to waste everyone's time.

It's sloooooooooooow with many pools long closed.

Thanks for some excitement.

Double it for half strength MA

 

[Bperry]

I'm an idiot again. Just ran the TA test again and got 110.
Apparently I was confused and mixed up the TA with results from another test.
Really sorry to waste everyone's time.

Well that’s good. Always sanity check anything that tells you to add more than a 1/2 gallon of anything.

 

[bradde]

Thanks so much guys!

 

[markdpratt]

I’ve read on TFP several times to lower pH in 0.4 increments, wait 30 minutes with pump running, retest, and add another increment of MA to lower another 0.4 pH until you get to your target.

 

[bradde]

I’ve read on TFP several times to lower pH in 0.4 increments, wait 30 minutest with pump running, retest, and add another increment of MA to lower another 0.4 pH until you get to your target.

Sounds like a good approach. Thanks Mark!