Browse Forums Eco Living Re: Rainwater Harvesting Wet System Questions 2Jul 02, 2013 2:03 am 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: Rainwater Harvesting Wet System Questions 4Jul 03, 2013 12:30 am 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: Rainwater Harvesting Wet System Questions 6Jul 05, 2013 4:03 am 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: Rainwater Harvesting Wet System Questions 10Jul 06, 2013 4:35 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: Rainwater Harvesting Wet System Questions 11Jul 06, 2013 4:39 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: Rainwater Harvesting Wet System Questions 13Jul 06, 2013 7:48 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: Rainwater Harvesting Wet System Questions 15Jul 07, 2013 2:32 am 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: Rainwater Harvesting Wet System Questions 17Jul 07, 2013 4:51 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: Rainwater Harvesting Wet System Questions 19Jul 09, 2013 4:36 am Hi David, I had thought that running downpipes 1 & 2 separate would have used less pipe but the diagram shows a lot of pipe used to harvest downpipes 3-6 whereas I had envisioned a single pipe following the house perimeter. Obviously I can't see the property but if it is more straight forward to run downpipes 1-3 together, then that is what you obviously have to do. I didn't have time yesterday to get a cost comparison on the 2.5 mm walled 90 mm stormwater pipe. The normal 90 mm thin walled pipe is very weak but most plumbers use it for wet systems, mainly because it is cheap and they have no pride in their work. The better plumbers use DWV pipe. If you are on Bay of Biscay, then I wouldn't use the flimsy stuff. Re my earlier suggestion to initially run some 50 mm pipe, the problem is that I don't know the approximate roof areas that downpipes 3 & 4 harvest. There would normally be a high point at the valley near downpipe 4 and if there is, then I wouldn't run a 50 mm pipe between 3 & 2 as downpipe 3 will be harvesting a large roof area. There would most probably also be a high point between downpipes 4 & 6 near the wall separating living 2 & bedroom 2. If there is, then downpipe 4 is also harvesting a fairly large roof area due to the additional pergola roof area. It would be ok if there was more available head but 300 mm head on a long run during a major storm off a decent roof area could overtax a 50 mm pipe. The Gutter Pumpers that you have drawn are fitted at a valley. Valleys attract leaves and they flow down the valley en mass. The Gutter Pumper only generates a vacuum once the water is more than 20 mm deep and this means that a high point along a straight length of gutter is flushed prior to the vacuum starting. It's normal high flow rate also means that it operates with frequent vacuum breaks. When this happens, the suction stops and any debris washes past due to the turbulence during heavy rain. Valleys can be a problem however as debris can often 'raft' down. I recommend that you also fit some gutter guard to these areas. The Fielders Watergate is a good zinc mesh that is easy to DIY and comes in a 8 X 1.25 metre pack that costs about $40. Bunnings have it in their garden section. The long run to downpipe 6 is of no consequence as the G-P head is calculated from the gutter. The ID of 20 mm class 12 pressure pipe is 23.7 mm. You will need this figure for the calculator. Add about 25% to the pipe length as a fittings allowance if you don't know the fitting's friction losses. Do you have slotted gutters? If so, the overflows at the valley could be caused by generated hydraulic jumps during heavy rain causing the slots to overflow. 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: Rainwater Harvesting Wet System Questions 20Jul 09, 2013 11:41 am Pretty much no leaves get into our gutter, mainly dirt & dust over summer. No the gutters are not slotted. Gutterpumpers preferably in the high spot mid way between runs? I will investigate availability of thick walled 90mm stormwater & see if decent fittings are available. Most I've seen are just as thin as the pipe these days! 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 8546 Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19744 DIY, Home Maintenance & Repair But if it is a ground level open pit, then it is not a charged system. No surprises there. The pipes have obviously been altered and there would be a reason for this.… 3 31477 |