Fix Your Drainage Problem — No Engineering Degree Required
Free calculators and guides to help you figure out what you need, whether you're DIYing or hiring a contractor. Tell us your problem and we'll point you to the right tool.
What's Your Problem?
Pick the issue closest to yours and we'll show you the right tools.
My yard is always soggy
Standing water, puddles that won't go away, or grass that stays wet for days.
Water in my basement
Seepage, dampness, or flooding in the basement after rain.
Driveway or patio floods
Water pools on paved areas and takes a long time to drain.
Gutters overflow
Gutters can't keep up during heavy rain, or downspouts are too small.
Recommended Calculators for Homeowners
These tools are designed to be easy to use with clear explanations at every step.
French Drain Calculator
Calculate French drain capacity, pipe sizing, and storage volume.
Open CalculatorRain Garden Calculator
Calculate rain garden sizing for stormwater management.
Open CalculatorDownspout Sizing Calculator
Calculate required downspout size based on roof area and rainfall intensity.
Open CalculatorCatch Basin Calculator
Calculate catch basin sizing, outlet pipe capacity, and sediment storage volume.
Open CalculatorDry Well Calculator
Calculate dry well sizing for stormwater infiltration.
Open CalculatorGutter Flow Calculator
Calculate gutter flow capacity using Manning's equation.
Open CalculatorRoof Drain Sizing Calculator
Calculate roof drain size for flat and low-slope roofs.
Open CalculatorSump Pump Calculator
Calculate sump pump capacity and pit sizing for basement drainage.
Open CalculatorFoundation Drain Calculator
Calculate foundation drain sizing for basement and crawlspace waterproofing.
Open CalculatorTrench Drain Calculator
Calculate trench drain capacity using Manning's equation.
Open CalculatorLearn How Drainage Works
Short articles that explain drainage concepts in plain English.
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