SUPADIVERTA - syphonic rainwater diverter

WATER TANKS

MOST HOMES DO NOT HAVE THE AVAILABLE SPACE TO SITE A LARGE TANK NEXT TO THE HOUSE.

HOUSE 1
Large tanks need to harvest large roof areas. Assuming our example downpipe harvests 40 square metres of roofing, 10mm of rain will supply a maximum of 400 litres of rainwater. Or does it? Allowing for evaporation and first flush losses, the annual average yield is typically 80-85% and many large tanks fed from a single downpipe rarely fill.
Plumbing an additional downpipe entails added expense, is often an eyesore and most often not compliant with plumbing regulations if the overflow pipe is unable to cope with the inflow from a large roof area during a high rainfall event.
See Water Tanks, Overflow Pipe.

HOUSE 2
Our example depicts a smaller tank, perhaps 2,000 litres, harvesting a larger roof area by using two Supadivertas. By height adjusting each Supadiverta’s overflow below the level of the tank’s overflow, the tank’s overflow pipe is not required, resulting in neater and cheaper plumbing. There is no limit to the number of downpipes that can be harvested by this method.

NOTE: Height adjusting a Supadiverta is an option, NOT a requirement.

10mm rainfall per hour on 40 sq metres of roof servicing one downpipe is an average of 8.3 lt / min - 500 lt / hr

When excess water is harvested, a sprinkler can be turned on to regulate the tank level and provide harvested water to needy areas OR water can be automatically transferred elsewhere through the third priority outlets. A sprinklers flow rate depends on pump pressure and length of hose and is generally less than 800 litres per hour.

DEEP WATERING ENCOURAGES DEEP ROOTS AND HELPS DROUGHT PROOF GARDENS!

AQUATREK recommends the use of the largest tank(s) possible and connection to the toilet for maximum year round benefit. The above scenario is used to highlight the benefits and wise usage of small tanks.

FULL TANKS OVERFLOWING TO STORMWATER IS A WASTE OF WATER AND THE MONEY OUTLAID TO HARVEST THAT WATER!