Pool Math........The App

Leebo

Admin
TFP Expert
LifeTime Supporter
Jul 21, 2011
10,379
Eastern Ohio
Pool Size
25000
Surface
Vinyl
Chlorine
Liquid Chlorine
Thank you for the welcome. I have the app on my iPhone and it works great. Tracking both my hot tub and pool (separate units) on the it. Wanted to do the same from my iPad.
What happens if you click OK??
 

RyanBC01

Member
Apr 23, 2013
9
Kingsland, GA
After many requests over the years TFP is taking matter into its own hands and updating PoolMath this Spring to include an option to log and track your test results. This will be done with a dedicated iOS and Android App and will be launching soon. We've got it running now on a handful of devices and are finishing working the kinks out of things now. More details will be passed on as we come closer to completing the App in the near future.

Hello,
I’ve been using the app for over a year now. My account renewed in Nov as I was charged. However now when I go to use it I’m getting a message that I need to upgrade to premium. Well I just paid Nov 23 but with the winter and not really testing I haven’t used it until now. Can a moderator or someone that has access to account details please review this and let me know how to resolve?
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
23,586
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Hello,
I’ve been using the app for over a year now. My account renewed in Nov as I was charged. However now when I go to use it I’m getting a message that I need to upgrade to premium. Well I just paid Nov 23 but with the winter and not really testing I haven’t used it until now. Can a moderator or someone that has access to account details please review this and let me know how to resolve?

@Leebo should be by soon to help you.
 

jseyfert3

Silver Supporter
Bronze Supporter
TFP Guide
Oct 20, 2017
1,447
Southern WI
Pool Size
15000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hello,
I’ve been using the app for over a year now. My account renewed in Nov as I was charged. However now when I go to use it I’m getting a message that I need to upgrade to premium. Well I just paid Nov 23 but with the winter and not really testing I haven’t used it until now. Can a moderator or someone that has access to account details please review this and let me know how to resolve?
If you haven't yet, try going to the menu then About TFP, scroll down and click Restore Subscription. If that doesn't fix it Leebo will help (if he hasn't already).
 
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Auburn02

Well-known member
Oct 8, 2019
182
Mobile, AL
Is there a reason 29% muriatic acid is not an option in the "Effects of Adding" menu? It is available in the dropdown of options to lower pH in the actual pH measurement/log screen, but not Effects of Adding.

On the same topic, is the Effects of Acid menu correct for 14.5% muriatic acid? For example if I set my current pH to 9 and a target pH of 8, and set in the "What will you use to lower pH" option as 14.5% muriatic acid, it tells me to add 56 fluid ounces (13000 gallon pool). So that would stand to reason that 56 oz of 14.5% muriatic acid would result in lowering pH by 1.0. But if I go to Effects of Adding and put in 56 fluid ounces of 14.5% muriatic acid, it tells me it would lower pH by 0.5 - so which of these is correct, and/or why are they different?
 

jseyfert3

Silver Supporter
Bronze Supporter
TFP Guide
Oct 20, 2017
1,447
Southern WI
Pool Size
15000
Surface
Vinyl
Chlorine
Liquid Chlorine
Is there a reason 29% muriatic acid is not an option in the "Effects of Adding" menu? It is available in the dropdown of options to lower pH in the actual pH measurement/log screen, but not Effects of Adding.

On the same topic, is the Effects of Acid menu correct for 14.5% muriatic acid? For example if I set my current pH to 9 and a target pH of 8, and set in the "What will you use to lower pH" option as 14.5% muriatic acid, it tells me to add 56 fluid ounces (13000 gallon pool). So that would stand to reason that 56 oz of 14.5% muriatic acid would result in lowering pH by 1.0. But if I go to Effects of Adding and put in 56 fluid ounces of 14.5% muriatic acid, it tells me it would lower pH by 0.5 - so which of these is correct, and/or why are they different?
If I hazard a guess, it’s because Effects of Adding is only a very rough approximation for pH calculations, which ties into your second question.

On the Effects of Adding page note the warning listed at the bottom:
View attachment 272575
My understanding is the Effects of Adding page does NOT link your latest TA/pH/borates when estimating, hence the warning that it’s good only for small changes within certain ranges.

When calculating acid additions from the latest test results section this calculation does indeed pull and use latest TA/pH/borates for calculation of pH effects, so it is more accurate (though not completely accurate). Always use the other section of the app with the Target and Current pH values to calculate pH adjustments. Actually for any adjustments. The way I think of it is Effects of Adding is to see what all effects a particular chemical may have, but Effects of Adding was not designed to actually be used to calculate the amounts of something to add.

For example using my hot tub, I can use the FC section to calculate a FC increase from 3 to 6 ppm on my hot tub. I select dichlor as I need some CYA. It says add 0.3 oz of dichlor. If I want, I can now go to Effects of Adding page and put in 0.3 oz of dichlor, and I can see dichlor will in addition to adding FC lower the pH, raise the TA, and add salt. Note the same warning that the pH calculation is approximate.
View attachment 272576
Basically I think of the Effects of Adding as a curiosity for finding out what what all a particular chemical may do in addition to it’s main function, but only after I use the addition calculators to calculate the dose of chemical I need to add.

Does all this make sense?
 
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jseyfert3

Silver Supporter
Bronze Supporter
TFP Guide
Oct 20, 2017
1,447
Southern WI
Pool Size
15000
Surface
Vinyl
Chlorine
Liquid Chlorine
Let me try those two images again. Something went wrong the first go.
5BC5FA8A-4CD1-43F1-989E-E22DC57294A3.jpeg
C5981E89-06F5-47D5-B242-8FB1E51A8277.jpeg
 

cgabb5

Member
Mar 20, 2019
21
Wichita, KS
Pool Size
27000
Surface
Vinyl
Chlorine
Liquid Chlorine
Anyone else having an issue with the log of opening and closing the pool under the Maintenance tab? PoolMath app tells me that the last time I opened my pool was 4/19/19 and have never closed it.

Obviously affects nothing, other than my own personal records. But I was just curious.