Wastop PVC Access Chamber

The WaAccess Chamber is a complete inspection chamber Ø425mm (Ø15”) with DN110-160mm (NPS 4-6”) connections.  Inside the chamber is a WaStop check valve to prevent back-flow.  The ‘easy-remove’ check valve makes the chamber easy to rinse.  The check valve can be removed from ground level.  WaAccess Chamber can be installed in sewage, drainage and surface water networks.


  • Easy access from ground level.
  • Easy to inspect – simply lift manhole cover and pull up the WaStop module
  • Delivered complete – inspection chamber and check valve in one