Poolmath: Different Results in App vs Web

[bostonpool]

Hi Folks:

I've got a 32,000 gallon gunite pool. Just tried using the new Poolmath App and was surprised to see the amount of acid it is recommending that I add is vastly different than what the web says.

I've always used the Website and have been pleased. My PH is current 8.4 (just opened the pool) and I"m trying to lower to 7.8 using 31.45 / 20 Baume.

Website says to add 3 quarts of acid. (12 cups)

App says to add 3 cups, 6 oz.

That's quite a difference. Any idea why there is such a discrepancy? Note both app and website are set up for 32,000 gallon plaster pool

 

[Leebo]

What is your current TA level? Make sure that field matches as that plays a part in the calculation. I suspect that’s off on the webpage version for you.

 

[jblizzle]

I was going to say the same as Lee, that TA needs to be the same as it is a major player.

 

[bostonpool]

TA is 70 on both web and app. I like the idea of the app, but until the results are the same I won't be using it.

 

[Leebo]

How about borates? Both set to zero?

 

[bostonpool]

That did it. I don't typically track borates. But I had 15 loaded in on the web page. And zero on the app. Changing the app to 15 made them match.

Many thanks!