RWP 'Clear-flow' siphonic rainwater outlet

Siphonic Rainwater systems where first developed in Scandinavia and were introduced into the UK in the 1980's and early 1990's when rainfall patterns were vastly different to those we are currently experiencing.

Using our extensive knowledge of the Siphonic industry RWP have developed a high flow capacity Siphonic rainwater outlet - Clear-flow - which is capable of taking flows up to 46 L/S per outlet (nearly twice the amount of some earlier Siphonic outlets). The product has been developed to work with all modern day construction methods and material types, allowing the outlet and adjoining Siphonic system to be used in virtually any new build or refurbishment.

As with all correctly specified and designed siphonic systems, benefits are gained by the client in the reduction of underground drainage runs, simpler co-ordination - due to the horizontal nature of the system - and considerably reduced pipe sizes when compared to conventional gravity installations. Due to the clear flow design of the outlet, debris which could build up around the leaf guards or grills causing blockage, are washed away through the Clear-flow outlet and the high velocity Siphonic Pipe work below.