Buried and out of sight, In-Ground Water Diverters are perfect for sloping allotments. On a site that provides the opportunity for the end cap of the diverter to be positioned above ground (to drain out and be accessible for maintenance), an In-Ground Diverter allows a ‘wet’ system to be converted into a ‘dry’ system.
Most systems are ‘wet’ due to the size of buildings, and the placement of tanks away from the buildings mean that there are long runs of pipe underground leading to a riser at the tank. On a sloping site this diverter ensures the diverted water and the water that would normally remain in the pipes empties out. The result – a ‘dry’ system that improves water quality.
It is important to prevent heavy sediments and other roof pollutants from entering the rainwater tank. It is recommended that the amount of water diverted should be a minimum of 20 litres per 100 square metres of roof area (or 0.2L per m2). In calculating the amount of water to divert, consideration can be given to (1) the surface area of the roof, and (2) the amount of pollutants on the roof and gutters.
The following factors can be used as a guide in determining the volume of water to be diverted.
As a rule of thumb, the more water that is diverted the better the quality of water in the tank.
These water diverters can handle more than one pipe
Single or multiple pipes carrying water from the roof can be directed into an In-Ground Water Diverter.
Determine the length of 300mm pipe required using the table below.
Inlet End: The ball seat #6 is inserted into the top of the end cap as shown.
Outlet End: The outlet requires only 90mm pipe. Assemble as shown in the attached drawing making sure to insert ball #7 before attaching cap #11. Select one of the four control valves #12 and fit into hose connector #13. Save the remaining valves for possible later use.