Pool Math App - Adding Muriatic Acid

Iam1964

Well-known member
Dec 26, 2019
79
Conroe, Tx
Hi @Leebo,
I noticed a discrepancy between the "overview" screen and "effects of adding" screen.

If I have a Ph of 8 and I want to reduce it to 7.4, a reduction of 0.6, the overview screen tells me to add 20 fl.oz of Muriatic Acid.

1589150549382.png

However, I I use the "effects of adding" screen and I add 20 fl.oz of Muriatic acid it tells me it will reduce the Ph by 0.3

1589150505295.png

Going from my actual results I thing the overview screen is giving a lower number than it should.

Am I crazy and missing something obvious?

Thanks
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,694
Laughlin, NV
It has to do with the TA. The Effects of Adding is not using the current TA in the calculation. To be honest, you should not use Effects for seeing pH changes.
@Leebo -- you see any issues here?
 

Iam1964

Well-known member
Dec 26, 2019
79
Conroe, Tx
It looks like a simple arithmetic error to me. I have tried a few numbers and it always evens to be 1/2 the value of the “effects of adding“ screen.

thanks for the info.
 
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