Browse Forums General Discussion Re: Rainwater harvesting system - Perth 2Jan 15, 2022 12:09 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 system - Perth 3Dec 21, 2022 6:09 pm SaveH2O - thanks for that great information! I actually forgot I made this post and I apologize for not thanking you sooner. I'm about to start plumbing up the system and started researching again. I think I am going to go for a system similar to what you suggest, however instead of having x6 downpipes on each run that end up with a 150DWV, I'll only run x4 downpipes for each run but only end up at 100DWV. This is just a cost decision, as x3 runs of 100DWV is quite a bit cheaper than x2 runs of 150DWV. Basically: Downpipe 1-2 = 65mm DWV Downpipe 2-3 = 80mm DWV Downpipe 3-4 = 100mm DWV Downpipe 4-tank = 100mm DWV This should maintain adequate flow rate at all points and satisfy total flow. I assume this is fairly equivalent to the system you proposed? Main difference being my 3x100DWV will flow at 1.1m/s as opposed to the 2x150DWV at 0.8m/s Re: Rainwater harvesting system - Perth 4Dec 21, 2022 7:05 pm Even better! 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. 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 8466 Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19604 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 31361 |