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WaStop is a market leader in protection against flooding from sewage. Water can be stopped from forcing its way into the sewage system by using Wapro products. Our products have prevented thousands of floods throughout the years.

  WaStop® - The Original Inline Check Valve  
  The patented Wastop® inline check valve has been the innovator and industry leader since its inception in 2002. Wastop excels at preventing backflow, flooding, and sewage odor spread in pipe networks. It can be inserted into almost any existing pipe. Unlike any other check valve available today, Wasto®p can be mounted horizontally, vertically, on an inlet, outlet, in a chamber, or utilizing flanges. Installation is a breeze!  

WaStop Check Valve

  • Installed for over 10 years worldwide with 100% satisfaction
  • Superior construction materials
  • Extremely low head loss
  • Low life cycle cost and easy installation
  • No moving parts - virtually maintenance-free
  • Many dimensions 40 - 1500 mm std & non-standard pipes
  • Stops liquids, gases, odours, insects and small animals
  • Many installation options - vertical to horizontal
  • The ORIGINAL inline check valve - leading development

WaStop Valve


WaStop as an Outlet


WaStop Valve


WaStop Inline Installation


WaStop Valve


WaStop Manhole Installation 1


WaStop Valve


WaStop Manhole Installation 2


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