Browse Forums General Discussion 1 Oct 26, 2015 8:17 pm I have a 1250m block that I want to subdivide into two lots. The stormwater for the existing block runs into a soakage pit and there is no outlet to the street. The neighbour does not want us to link into his stormwater to discharge to the street even though our block is higher than his and we can flood him. The Council require stormwater to be piped to a lawful place of discharge for the new lot, however they do not require it for the existing house. The lot slopes down from the road to the neighbour below. Does anyone have suggestions as to how to discharge the stormwater? The planning consultant has suggested filling in the site but this would involve significant retaining. Your ideas and experience would be very much appreciated. Re: Stormwater subdivision - help? 3Oct 26, 2015 8:47 pm Our kerb outlet would be at the highest point of the land. The lowest point of the land backs onto our neighbour so this would be the natural place for the water to flow to. So not feasible for us to put in our own kerb outlet unless we do significant filling and retaining. Re: Stormwater subdivision - help? 4Oct 27, 2015 6:12 pm Suzy you can do a charged system - whereby your roof / ground water flows into an underground tank, and once it gets to a certain level or periodically (you can set it however you wish) - it will pump the water up to your kerb and channel through normal stormwater piping. Rubble pits are still an appropriate point of discharge for existing lots, but not for the new lots that you are creating (bcc). This changed with the 2014 town plan. It's not cheap - but they are effective. Stormwater subdivision - help? 7Oct 27, 2015 9:23 pm That's not a charged system it's a pumped system. I think pumped systems aren't any good because what's the first thing to go in a storm??? Electricity so how is the system going to pump??? It's not unless you have power backup. A charged system would have a water tank, or can be designed without, above ground and all stormwater pipes connect to that. The downpipes would be a sealed system, referred to as charged (because they always have water in them). You connect the toilets ect to the tank to consume the water. If the water overflows from the tank the head pressure from the tank pushes the water to the street. Only caveat is the tank discharge point must be higher than the kerb outlet or if doing it straight through the downpipes then the gutter must be higher than the discharge point. Does that make sense? Re: Stormwater subdivision - help? 8Oct 27, 2015 10:04 pm There is an explanation and diagram of a charged system at this link: http://anewhouse.com.au/2013/03/charged ... ge-system/ The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Stormwater subdivision - help? 10Oct 28, 2015 5:06 pm Choosy7 The Council require stormwater to be piped to a lawful place of discharge for the new lot, however they do not require it for the existing house. The lot slopes down from the road to the neighbour below. You sure about that? Subdividing just doesnt create one "new" lot, it creates 2 "new" lots. It may be the case that the exisiting dwelling mitigates some compliance issues, but if I was you, I'd make double sure that stormwater compliances does not apply to the dwelling lot. Re: Stormwater subdivision - help? 12Oct 29, 2015 8:37 pm A charged system caters for roof catchment. It won't assist with any additional paving or reduction in pervious ground cover or behind retaining walls etc (if applicable). Most Council's would insist you raise the site or secure an easement for the connection at the rear. Plumbers 'can be' plumbers, made all the worse by self certification which the building surveyor invariably accepts as proof of compliance! The good thing is that you know know. 3 3243 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 6343 in the stormwater pit or the drain? Those dont look like theyd fit in the drain. Separately, the pits do get stuff in them during the course of the build. For the most… 1 4931 |