Interactive Tool

    I&I ROI Calculator

    Test a sewer basin against a 5,000 GPD/IDM infiltration and inflow limit, then see what a rehabilitation program costs and what it avoids.

    Basin Inputs

    Pipe

    yr

    Conditions

    Program

    Enter Your Basin to See Results

    A basin name, mainline length, laterals and average age are all it takes. Everything else has a default.

    Model Version 3.2.0 · Last Updated October 11, 2026