GPM from a bucket test or from pipe size and velocity, and the time to fill a tank.
Finished the flow rate? Snap a before and after. The photo maker lines them up into one image you can post, and a free Blueprint account keeps the photos with your measurements and materials.
Pick one for a step-by-step plan with tools, materials and costs, or tell us in your own words.
A bucket test tells you what a fixture really delivers.
| Inside diameter | At 5 ft/s | At 8 ft/s |
|---|---|---|
| 0.5 in | 3.1 | 4.9 |
| 0.75 in | 6.9 | 11.0 |
| 1 in | 12.2 | 19.6 |
| 1.5 in | 27.5 | 44.1 |
| 2 in | 49.0 | 78.3 |
Sizing a water heater? Try the tankless heater calculator.
Gallons, litres and water weight in any length of pipe
GPM from your fixtures and groundwater by ZIP, then gas BTU or electric kW, amps and breakers
GPM from a pit test or your basement, total head, horsepower from pump curves, basin size and backup power
Pipe sizes, fittings, codes, soldering techniques, and common repairs
Reference table showing maximum flow rate and recommended pipe size for PEX tubing
Reference sheet detailing gauge measurements and calibration procedures for PEX tools