Engineering / Pipe it right.
Plumbing
Pipe sizing, water heaters, drainage slope, traps, and rainwater harvesting for plumbers and builders.
5 tools available
Tank Water Heater Sizing by Household
Pick a tank size (gal) for a family of 1–6.
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Pipe Flow Velocity & Friction Loss
Solve velocity and Hazen-Williams head loss for any diameter.
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Floor Drain Trap Primer Frequency
Compute primer valve cycles/day to keep P-traps wet.
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Rainwater Harvesting Tank Sizer
Size a cistern from roof catchment area and local rainfall.
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Restaurant Grease Trap Sizer
Pick a grease trap by fixture count and flow rate.
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