Thel-mar is a manufacturer of the compound Volumetric Weir. The Thel-mar Volumetric Weir is the most practical and economical calibrated measuring devise used to determine infiltration in newly installed sewer lines, as well as substantial flows in existing pipes. Our weirs offer the advantage... Read More
Waterman Industries is a recognized leader in water control products for water treatment, wastewater, high-volume agricultural and rural surface water delivery, hydro-power, and flood control management. Waterman is a leading provider of water control gates, valves, automated controls and... Read More
