Tools & Calculators
Tools here narrow the field and tell you what to investigate. None of them diagnose a yard or design a system — that needs measured fall, a confirmed outlet, and someone standing on the property.
Yard Drainage Solution Finder
LiveEight questions about your yard's conditions. Returns the approaches that fit, what to check next, and what to ask a contractor.
Open the tool →Roof Runoff Calculator
PlannedHow much water your roof sheds in a storm, and what that means for where downspouts should discharge.
Yard Slope Calculator
PlannedTurn a string-line measurement into a slope percentage, and find out whether you have enough fall to drain.
Not sure where to begin? Start here walks through the four observations that narrow most drainage problems down before you even open a tool.