Easily divert large volumes of first flush with the Delta High Volume Chamber. Using multiple 100mm pipes to create the diversion chamber, the Delta’s revolutionary design makes installation simple. The Delta chamber is customizable up to 2 metres. Every 1m of Delta chamber = 73 litres of diversion.
For larger volumes, consider the Delta manifold installation configurations.
This unique design ensure that the first flush ball remains close to the seat, even in high flow events, ensuring the diverter seals as soon as the chamber is full. No more lost balls when cleaning your outlet either!
By allowing you to determine the frequency of first flush, the Advanced Release Valve ensures that the Delta’s first flush diversion is optimized. The transparent, rapid release exit funnel reduces build up and blockages while allowing for easy visual inspection.
Suggested Installation Orientations
NOTE: It is critical that all the Chamber Pipes are exactly equal length. It is also recommended to apply a small chamfer to the outside ends of the 6 Chamber Pipes to improve ease of insertion into the Chamber Sockets.
NOTE: All sockets of the Delta End Cap are stepped internally. The inner socket is for use with 100mm UPVC pipe and the outer socket for 4” SCH40 pipe. Only apply solvent weld glue to the socket relating to the pipe in use.
Delta Post/Wall Inlet/Outlet Positions
NOTE: refer to solvent weld glue manufacturers specifications and curing times.
Inserting the Cage/Seat and Ball
CAUTION: failure to support the unit in the upright position while attaching the upper bracket could crack the bottom Chamber End Cap.
It’s important to ensure that your first flush diverter outlet remains clear of any debris. If your outlet becomes blocked, the chamber will not empty and the first flush of water will not be diverted when it rains.
To ensure the flow of water out through your Advanced Release Valve, periodically remove from the Transparent Rapid Release Exit Funnel to check for any build-up of matter. Remove primary filter plus ball, and clean if required.
Periodically check that the Advanced Release Valve batteries have charge. This is indicated by the flashing light.
To protect your Advanced Release Valve from freezing or “winterising”, remove the timer prior to the first frost or freeze and store it indoors until spring. Remember to remove the batteries from the battery compartment.
For best results and minimal maintenance, rain heads with 0.955mm aperture mesh such as Leaf Eater Rain Heads
must be installed upstream of the Delta First Flush to limit the entry of debris that can reach your diverter.
First Flush Delta Post/Wall
100mm First Flush Delta Post/Wall
150mm First Flush Delta Post/Wall
First Flush Delta Post/Wall outlet on an angle
First Flush Delta Post/Wall Two Chamber