Browse Forums DIY, Home Maintenance & Repair Re: Sub-floor drain pipes encased in concrete... 2Jun 13, 2014 3:47 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: Sub-floor drain pipes encased in concrete... 5Jun 14, 2014 3:52 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: Sub-floor drain pipes encased in concrete... 7Jun 14, 2014 9:23 am Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: Sub-floor drain pipes encased in concrete... 8Jun 14, 2014 12:45 pm dagdamor From memory tank location on the East side will be easy as it/they can go pretty much right under the existing downspout(s) with appropriate debris filters/supadiverters etc. so no need to run pipe everywhere. Capturing the rest of the roof is problematic at this stage due to a lack of suitable tank locations, so I'd either have to pump or go some sort of complicated wet system and I'm not really interested in those for reasons you and others have no doubt expounded on in various threads I've read Hi DM, The Supadiverta allows the tank to be located anywhere (no need to have the tank next to the house) as the downpipes share a common infeed pipe. The shared smaller higher velocity pipe also allows you to have connection points anywhere along the pipe where you can occasionally or permanently connect poly pipes that supply gravity fed drip hoses to different areas. Connecting to the pipe is easier than connecting hoses directly to the tank, especially if you need to water the opposite side of the house. Connecting to the toilet will give greater utilisation of the harvested resource. If you decide to get a pump, you will only need to operate it if you have insufficient head but my cistern infeed also operated with the pump's pressure whenever the pump was turned on to supply the washing machine or for other uses. A 1 metre head is recommended but I found that as little as 700 mm head would allow the cistern valve seal to shut off supply once the cistern filled. The flow is slower though. Having the tank fairly close to the cistern is a strong influence. Because cisterns only need to fill at 6 litres per minute (LPM), you only need a small pump. It isn't good to have a pump pushing against what is effectively an obstruction, this is why big pumps connected to cisterns have disproportionate energy use for the work performed. In many situations, you will see a tank with very little negative head or else positive head supplying a cistern yet an unnecessarily large pump is used! There is no need! If you also have a small pump supply a garden tap, just use large diameter pipe between the pump and the tap as well as using an 18 mm garden hose with an attached short length of 12 mm garden hose at the end so that you can use the standard 12 mm hose fittings. At 20 lpm, the 18 mm hose has approximately 8 times less friction loss. Friction losses = reduced dynamic head. The Victorian Building Authority (VBA) document linked below also has a diagram of the twin cistern valve dual water supply system that has a little more text detail than the ACT Govt link in the last post. Note that it is stated that the air gap substitutes for a check valve but if a check valve can be easily fitted to the mains supply line, then I always do so as a matter of course. They don't cost much. The twin cistern valve system is a lot neater and cheaper than using a mains water switching device. http://www.pic.vic.gov.au/__data/assets ... sterns.pdf 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Grab a hose, insert it at the top of the inlet/down pipe and turn the water on and see where the water is escaping from. Then you'll know. 3 8467 As most others have posted above the install isn't compliant. The pipe is meant to be covered in loose soil or sand, the pipe has holes in it that leaks out a termicide… 10 5727 Building Standards; Getting It Right! 1. optional, you can but normally just use the earth from the main switch board 2. should be enough but the distance determines voltage drop - sparky should work it… 1 28814 |