Help with SLAM and poolmath app

suerou

Member
Jun 25, 2018
22
Charlton ma
I am back to the site after opening my pool last week. Just became introduced to poolmath app. I measured all of my levels and installed the poolmath app on my phone. I don't understand how to use the app to help with what my slam chlorine levels should be. Last year I just used the pool math on your site. It told me how much to add as I went through the SLAM process. Do i need to subscribe and pay? My levels are as follows:

CYA - not becoming cloudy at all with Taylor K-2006 test kit so lower than 30
PH 7.0
FC 6
CC .6
TA 50
CH 40

I am happy to pay for app if that's whats needed. Just confused on new process.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
22,464
Laughlin, NV
The web based Poolmath is still here - see PoolMath

To store and share your Poolmath data, you do need to subscribe. Also set up your pool information and login using your TFP login.

You enter your test data into the app. Be sure to select the check mark in upper right to save the data. Then go to Overview, select the parameter you wish to adjust and a screen will show giving recommendations.
 

suerou

Member
Jun 25, 2018
22
Charlton ma
Also, should I leave the CYA alone until after I SLAM and clean pool because I will need to backwash. Water is still green and not clean yet. When I did the test for CYA there wasn't even a hint of cloudy.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
22,464
Laughlin, NV
Was there CYA in this water before? If so, you should add 20 ppm worth of CYA using the sock method.

It is best to have at least 30 ppm CYA in the water to follow the SLAM Process
 

suerou

Member
Jun 25, 2018
22
Charlton ma
Yes I had CYA levels set for last year. I did empty water before closing in the Fall. I tested the CYA twice this morning just to be sure. I will add to bring CYA up because I need to SLAM. Thanks again, appreciate the help.