Measure and Estimate Water Wasted Due to Leaks Drips per Minute For smaller/slower leaks... simply count the number of drips in one minute from the leaky fixture. Note: 5 drips per second amounts to a steady stream.     "Bucket & Stopwatch Method" For larger/more rapid leaks... hold an 8 ounce cup ( 220 mls ) under the dripping fixture and time, in seconds, how long it takes to fill the cup. Enter # of drips per minute:      Enter your time in seconds:      Water Waste in GallonsLitresCubic FeetImperial Gallons  Daily Waste Monthly Waste (30 days) Yearly Waste