pool math comparison numbers

[rajung]

Just starting to using the app, want to get use to it before opening. Using the original program on my pc up to now.
Using poolmath to adjust PH from 7.8 to 7.2 with 13,700 gallons and a TA of 120ppm it shows to add 57 oz of 31.45% acid.
Using the app it shows to add 40oz. Have numbers been changed or where am I going wrong? thanks

 

[rajung]

Well for some reason I was using firefox originally, I opened the calculator with Microsoft edge and it matches what the poolmath app shows to add.

 

[mknauss]

I just input your numbers and get 40oz in app and webpage.

 

[mknauss]

Check your pool volume on the webpage. I use Firefox as a browser.

 

[setsailsoon]

I use Firefox also, no discrepancies!

 

[rajung]

I use edge as my default browser, and used Firefox to open the poolmath due to being able to save all my input numbers so as not to have to re input pool settings unlike I am able to do with edge.
When I do open the poolmath with Firefox it does give a warning about javascript needing enabled, I have never ran into this before
Here are a couple screen grabs from the firefox browser, All other PPM settings are not real

 

[rajung]

I am thinking that my issue is due to the version of Firefox I have which is 64, looks like JAVA add-on supported with version 54 and over