Seepage Meter - Lab Testing

Comparison between seepage rate measured with the seepage meter and true seepage rate (pump rate divided by horizontal cross-sectional area of the tank) in a 250 L (0.57 m diameter) barrel filled with medium sand. Water was injected into the bottom of the barrel with a pump, flowed up through the sand in the barrel, and was re-circulated to maintain a constant water level above the sand; the pump was also reversed to collect data under downward (negative) seepage.