HydraulicsSTC / FIELD

Drain or fill time

Divide gallons (or cubic feet converted to gallons) by a constant pump or line flow in gpm. Real systems vary with head, hose, and controls — use for ballpark duration only.

Time at steady flow

Volume ÷ constant US gpm. Assumes uniform rate, no drawdown curve, no air pockets — planning conversations only.

Time
50.0 min
Minutes (raw)
50

These free calculators are for informal support and education only. S Thomas Construction is not responsible for errors, omissions, misuse, or any decisions, damages, losses, or unsafe practices based on them. By using any calculator on this site, you agree to the Terms of Use below.

This notice does not replace our general Terms of Service.