The Thel-Mar Volumetric Weir is a practical and economical calibrated measuring device used to determine infiltration in newly installed sewer lines, as well as substantial flows in existing pipes. The weirs offer the advantage of a 90-degree v-notch for measuring small infiltration flow where accuracy is paramount. The rectangular portion of the compound weir measures larger volume flow rates. The faceplates are laser engraved and cut for easy viewing.
Contact Van WaltEvaporation pan set for the determination of the evaporation rate of open water.
Read MoreThe Flow Stick is a mobile measurement system for discharge measurement in watercourses, such as rivers, streams and canals.
Read MoreWater Level Meters designed to provide reliable and accurate measurements of groundwater level. So used in boreholes, monitoring wells, tanks and for surface water. Highly accurate polyethylene coated...
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