The HARCO Weir-equipped Drainage Structure is a custom drain basin with a stainless steel weir installed at the factory by HARCO, made to customer specifications.
Weir Drainage Structures are perfect for diverting water to preferred outlet within a HARCO drain basin, and also to restrict the flow of water.
These weir-equipped HARCO drain basins are widely utilized at the entrance and / or the exit of an underground storm water treatment system or an underground storm water retention / detention system.
These custom stainless steel weirs are available for 24”, 30”, and 36” diameter HARCO drain basins.
The customer is responsible for determining weir orientation, weir height, and orifice details for each custom weir drainage structure.
All Fittings Meet or Exceed:
• Materials: ASTM D1784 cell class 12454
• Joints: ASTM D3212
• Gaskets: ASTM F477
• Installation: ASTM D2321
PVC Weir Drainage Structure
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