The TD Series product line is a buoyant flow control device (BFD). An orifice or weir suspended from a float at a fixed distance below the water surface produces a constant discharge rate regardless of water level—in this case, operating heads from as low as 3 in. Though not technically a best management practice (BMP), the custom-fabricated product facilitates BMPs and has been approved by several state DOTs.

Thirsty Duck LP
Booth 8212