Browse Forums Eco Living Re: My Rainwater harvesting system 2May 09, 2020 12:10 pm Northern Adelaide, Format Homes '16-'17 after failed Bondor OB Re: My Rainwater harvesting system 3May 09, 2020 1:24 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: My Rainwater harvesting system 5May 10, 2020 9:22 pm I'll add a pic to help. SaveH20: 1a. Not sure of my 20:1 ARI . Im near Gawler SA. BOM Rainfall SIte says about 2% chance of filling 5KL tank in 4 minutes assuming tranfer pump doesnt turn on. 1b. Entire 370M2 Roof is diverted. 2. Yes 2 charged pipes. 3a. "Collection point' = the 5KL tank right next to house. 3b. Ok - this gets a little technical...our house is over 3 times longer than wide. , and the tank is on a narrow end. Hence the underground volume of EACH long ( over 35 Metres ) 90mm pipe before the first tank is about 240 Litres., meaning crap that falls on the roof, and flows through, wont arrive at first tank until that volume has passed. There's 2 pipes, so a 'properly-working "first-flush " system should loose over 480 litres-ish to "Flush" before any actual "fresh" roof water arrives. I guess its possible to fit individual diverters under base of nearly all of the down pipes ( I think there's 9 ) , to somehow avoid loosing the underground buffered water. ? Rather than disperse this water, I chose to hold it all, and filter on-tank-entry. 4. Im lucky to have no trees nearby. Im working on the 'suck-it-and-see' approach... I may add these if/when later I believe necessary. rantapawan: Im not sure how stormwater could flow backwards. The transfer-pump has valve . THe down-pipes from Gutter only have natural (open system) equalisation through to top of first-tank feed pipe , which run up to a hieght approx 2 foot below gutter. Northern Adelaide, Format Homes '16-'17 after failed Bondor OB There is a whole lot more to know than just the answers you seek but they are a good start. Overflow outlets have a mosquito proof mesh. These… 3 8647 Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19864 Grate, thank you! RexChan if thats the reason i could sleep well without thinking about additional cost. But 1st i'll need to read about NRV cleaning/replaing stuff. I… 7 31445 |