Browse Forums DIY, Home Maintenance & Repair 1 Jan 27, 2012 1:17 pm Hi Guys and Gals Im Kyle and have recently built a house (lived in for 2 years now). Well i really could do with some advice from you guys. So the story is: We built a house at Munno Para West, South Australia. The soil is quite clay consistant so the water issue has always been a bit of a problem but in one area i am getting some bad flooding and im not 100% sure what to do about it. Basically i am stuck as i dont have anywhere to run stormwater pipe. All downpipes are connected to my rain water tank via a wet system and are now under concrete but i am now having drainage issues else where and i cannont get any pipe out the front due to concrete being laid. I ahve attached a picture (paint drawing). Down the side of the house the width is about 2.5mm by about 4m to the "TO BE" retaining wall. I also will need to run subsoil pipe from behind the retaining wall to somewhere and im not sure where?? PLEASE HELP Thank you Kyle Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Hi and Please help - Major Drainage Issue 3Jan 27, 2012 1:56 pm hi B STAR, i apologies for sounding Naive , but could explain what you mean by point of discharge. This is my first house so i am learning as i go. I have neighbours to my left and right and at the back of my property. Re: Hi and Please help - Major Drainage Issue 4Jan 27, 2012 2:18 pm where is the point where all your drainage/stormwater connects into. Sometime you will find that if you land is lower at the back then the storm water connects into the back. If you land is lower at the front then it will connect into the front. Re: Hi and Please help - Major Drainage Issue 5Jan 27, 2012 2:21 pm Thanks At the moment i have 3 downpipes that connect to my rainwater tank as a wet system and then the over flow for the tank connects to the stormwater and goes out to the front kerb...the drain is about 5 meters from that point. Re: Hi and Please help - Major Drainage Issue 6Jan 29, 2012 12:59 am B STAR where is the point where all your drainage/stormwater connects into. . In SA its mostly discharged into the street curbing, be it a 'wet' of 'dry' system. The only way Kyleec I can see out of your problem apart from tearing up your concrete, is to construct a concrete sump about 800mm deep and 600mm square, or buy a smaller plastic one about 600mm (not the best option, but commonly used) at the lowest point where the water floods. Then install a submersible pump and pipe it to the street with some 30mm polypipe, that hopefully you can conceal against a fence. The sump will also take your ag drain from behind the retaining wall. It wont be cheap with the pump, wiring etc, and you may have problems getting power to the pump, but will be cheaper than cutting trenches in your concrete. This system is often used where the backyard stormwater is a lot lower than the street but the piping etc usually goes in BEFORE the concrete or paving Arfur Re: Hi and Please help - Major Drainage Issue 7Jan 30, 2012 9:02 am Hi Uncle Arfur, Many thanks on you reply, Do you have any suggestions on where i could look for a concrete sump and pump in SA. I am thinking this may be the only option as i really dont want to rip up my concrete. Thanks Re: Hi and Please help - Major Drainage Issue 8Jan 30, 2012 3:32 pm Kyleec0409 Do you have any suggestions on where i could look for a concrete sump and pump in SA. I am thinking this may be the only option as i really dont want to rip up my concrete. The concrete sump will have to be constructed (poured) in situ and its probably why most go for the plastic option. But the plastic walls could buckle with expanding wet clay soil. I saw one of these submersible pumps being replaced once and it cost over $200 and I cant help you with a supplier as Ive never bought one. Plus you will need a substantial grating for the top so some dill doesn't fall into it and sue you. Rather than charge headlong into it try and checkout some display homes on backward-sloping blocks Arfur Need more photos from around the house including your gutters. We have had 3 of the wettest years in a row for some time so that wouldn't be helping 3 6947 The two 15mm holes are obviously not compliant. The Dept of Fair Trading would love to see this one! Do the gutters pool water after it stops raining? Although it's… 4 7845 |