The new version of the program for water balance and performance indicators calculation, using  "bottom - up" approach, CalcuLEAKator4.0 is set for free download. 

What's new in CalcuLEAKator 4.0:

• Added Apparent Losses Index (ALI) (similar as ILI for Real losses)
• Added Unavoidable Background Leakages (UBL) Indicator,
• Added value of Reported and Unreported leaks,
• Bugs fixed,

CalcuLEAKator 4.0 can be free downloaded here >>