THE FIRST-FLUSH DIVERTER WITH SELF CLEANING TAP TIMER
This first-flush diverted holds 50 litres. A floating ball inside blocks the reservoir and re-directs water to the primary tank. A battery-powered tap-timer is programmed to open once per day for a minute, draining 9 litres of water into a watering can, thereby automating the cleaning. The tap-timer can also be run manually. Both sides of the roof feed the system. A small plastic skirt at the top reduces splashing at high flow rates. The water gauge is also visible with the clothes pegs showing the tank levels - both are near full.