Browse Forums General Discussion 1 Sep 19, 2017 11:23 am I've noticed standing water at the bottom of a vertical stormwater drainage pipe beside my new home as per the photos below. If I hose water into the pipe the water drains and the standing water level seems to remain the same. Is this normal or does it indicate a problem? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Standing water in stormwater drain. Normal? 2Sep 19, 2017 12:37 pm I'm not that familiar with Aussy buildngs, but from what you describe, at a guess the line has a water trap in it to stop gasses coming back up the line. So yes it would be normal to see that water. Re: Standing water in stormwater drain. Normal? 3Sep 19, 2017 2:00 pm It should have a minimum 1:100 slope but stormwater drainage is self certified work with no checks and pooling is common. There are some areas of concern with the photos that you have posted, would you mind posting another photo that shows a lot more area that includes the weep holes? I also can't see your DPC but that may be because your builder has used a certified Performance Solution that allows recessed DPC. Are you absolutely sure that it is a stormwater drain? The cover looks sus. 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: Standing water in stormwater drain. Normal? 4Sep 19, 2017 2:35 pm Thanks for your responses. I had assumed it was stormwater as didn't think sewerage would have a riser like that but admit I have absolutely no idea about such things! Here's a few more photos. The first couple show the location of the vertical pipe opening during construction. Note in the first photo there's another vertical pipe beside it also (labelled as a "capped riser" on site plan). The last photo shows it as it is today where a concrete path has been laid around it. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Standing water in stormwater drain. Normal? 5Sep 19, 2017 2:39 pm Looks more like an Overflow Relief Gully (ORG) which would have a water seal to stop the smell from the sewer. Check this link for more: http://anewhouse.com.au/2013/08/overflow-relief-gulley/ 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: Standing water in stormwater drain. Normal? 7Sep 19, 2017 4:24 pm Definitely an ORG. The regulations state that the spill level must be a minimum of 150mm lower than the lowest fixture connected to the drain and this will be either a floor waste or the shower drain but the regulations also state that where the 150mm minimum height cannot be achieved, a reflux valve must be installed in addition to the ORG. I suggest that you make double sure that you have this. The impermeable path is compliant with the minimum distance below the weep holes which is good to see. You would be surprised at the number of new homes that have the ORG higher than the bottom of weep holes that are not the minimum distance above the path but most paths are laid after handover. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ 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: Standing water in stormwater drain. Normal? 9Mar 07, 2018 11:06 am bashworth Looks more like an Overflow Relief Gully (ORG) which would have a water seal to stop the smell from the sewer. Check this link for more: http://anewhouse.com.au/2013/08/overflow-relief-gulley/ If the shower directly opposite the ORG is rarely used, is is normal that when that shower is ran, that a sewer smell comes up because water seal has dropped as water not ran often to top it up? Just wondering as this is happening to us on a new build. Only in the shower rarely used. 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 8465 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 7932 Yeah mine about 9 metres long and 8 wide with slope of 25% at one point but the end point of the outlet is past the side of garage and if he concretes allowing for… 4 4535 |