Help with alkalinity

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Nanifen

Well-known member
Jun 10, 2020
45
Nova Scotia, Canada
Sorry for the long post:

I’m new and have been trying since Sunday to balance the chemicals in my new pool.

I’ve studied all the info at trouble free pool and use their app, pool math.

I’m getting close:

PH 7.5-7.8
FCl .1- added liquid chlorine in ant suggested by pool math
TCl .5
TH 250+
CYA 40-50
Alk 150-180****

Pool math has said to decrease Alk add Muriatic acid to decrease PH to 7.2 and airate pool to increase PH. I’ve done this last 2 days and Alk has barely gone down. It was 180.

Any suggestions????? Help
 
Hi, welcome to TFP! How stable was your pH before you started adjusting TA? If pH is fairly stable then you don't need to adjust it to satisfy parameter requirements. The main reason to adjust TA is to help control and stabilize the rate of pH fluctuation.
 
zea3 said:
Hi, welcome to TFP! How stable was your pH before you started adjusting TA? If pH is fairly stable then you don't need to adjust it to satisfy parameter requirements. The main reason to adjust TA is to help control and stabilize the rate of pH fluctuation.
Click to expand...
The first reading was 8.4, on Monday. I added acid as suggested and it dr teased to normal range snd has stayed there. TA has been maintaining around 150-180
 
First and foremost, WELCOME TO TFP!!!

One of the first things to know about TA is its duty. It’s main “job” is to make sure the pH doesn’t swing wildly up or down. If your pH is stable at 100, then the TA is doing its job. There is no perfect number here.

What type of pool surface do you have as that also plays a large part in how TA matters.
 
There’s no dumb questions, that’s why we’re here is to help you! What type of pool do you have, vinyl....plaster....fiberglass?
 

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With a vinyl pool TA is even less important as the pH doesn’t sway nearly as much as do plaster pools. To lower your TA focus on pH. While that sounds weird, it’s not. Lower your pH to 7.2 and enjoy your water. Over time the pH will increase. When it hits 7.8’ish lower the pH again. In time the TA will decrease.
www.troublefreepool.com

Lower Total Alkalinity

A lower Total Alkalinity level can help a pool owner stabalize their pH increase. We'll explain how to lower TA with a little help from muriatic acid.
www.troublefreepool.com www.troublefreepool.com
 
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Leebo said:
With a vinyl pool TA is even less important as the pH doesn’t sway nearly as much as do plaster pools. To lower your TA focus on pH. While that sounds weird, it’s not. Lower your pH to 7.2 and enjoy your water. Over time the pH will increase. When it hits 7.8’ish lower the pH again. In time the TA will decrease.
www.troublefreepool.com

Lower Total Alkalinity

A lower Total Alkalinity level can help a pool owner stabalize their pH increase. We'll explain how to lower TA with a little help from muriatic acid.
www.troublefreepool.com www.troublefreepool.com
Click to expand...
Thank you. You guys are so reassuring and keep things simple.
 
In return, thank you! You honestly just confirmed in a small way our main goal, to be helpful to the user while keeping the chemistry as simple as possible! We can’t wait to assist some more whenever you’ve got questions. 👍
 
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