The Sigma calculator also includes information programs to calculate water velocity and friction loss, overall water and sanitary loads, pipe volumes and purge rates and more.
Individual licenses are limited for use by one seat or individual only.
May be used by unlimited number of users employed by the owner.

Download the package and Sigma 3.3b zip files above.

Unzip the setup files and click on the setkup.exe file to install operation files. Next unzip the Sigma 3.3b file.

Click on the Sigma executable file to run program.


For site licenses, contact Ed Hale, P.E. for details. (tennman@mindspring.com)

Select the "Buy Now" button above to purchase the program. An activation key will be e-mailed to the purchaser after payment is verified.

Unzip the "Package" folder and click on the setkup.exe file to install operation files. Next, go to the C:\programfiles ( x86)/Sigma folder and click on the Sigma 3.3u application file.

When prompted, enter the activation key and name (use any name desired). Program selection menu will open ready to operate.
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