Seepage Meter - Evaporation Lab Test

Water level change measured by a seepage meter installed in a 5-gallon bucket in the laboratory. The decline in water level is due only to evaporation. The standard deviation of the evaporation trend-removed data is 0.059 mm which is similar to the resolution of the meter’s analog to digital converter (0.050 mm). Less than 0.5% of the measurements were removed as outliers that generally coincided with ambient noise such as doors opening/closing, fans turning on/off, etc.