Browse Forums General Discussion Re: Water coming up near down pipe 2Jan 26, 2021 3:46 pm 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: Water coming up near down pipe 4Jan 26, 2021 5:14 pm 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: Water coming up near down pipe 6Jan 26, 2021 6:05 pm 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: Water coming up near down pipe 8Jan 26, 2021 8:00 pm 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: Water coming up near down pipe 9Jan 30, 2021 2:30 pm As a plumber and if it was my job to trouble shoot the issue these are the steps I would take before even contemplating to rip up concrete or if it was the neighbour. 1- Cut the storm water pipe feeding into the top of the tank, cut it on the vertical up the side of the tank near the top elbow. 2. Look down into this pipe and determine water level. If water is at the top then there is no leak on the system of pipes bringing storm water to the tank. If it is empty and the water level is below or level with the concrete then this confirms a leak on the system. 3. If no leak is confirmed of the feed in side of the storm water system then I would cut the vertical riser on the overflow pipe coming out of the tank. Once this is done I would run a substantial amount of water through to the overflow system to the street. If water eventually shows then this section has an issue. That is what needs to be done before doing anything with concrete or cameras. And as said above, a camera is useless in a pipe full of water. Re: Water coming up near down pipe 12Jan 30, 2021 4:18 pm Harly Last week we had them out again to check her pipes..... Then he tapped our down pipes, and said the water level was lower than it should be, so there must be a leak somewhere in our down pipe system. Harly, you said in your opening post that the water in the wet system was lower than it should have been. Also, tapping a pvc pipe is the easy way to tell where the water level is. Has it rained lately? 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: Water coming up near down pipe 13Jan 30, 2021 4:41 pm It poured on Monday in Adelaide, but there was no water seeping up. Prior to that rain, it has been dry for weeks. It has happened before where I expect it to seep up, but then if it rains the following day, then the seeping usually starts. We had plumbers out a couple of weeks back that felt the water in the down pipes was lower than they should be. They said water was going into the tank, but I didn’t see them look at the level of the pipe feeding into the tank like mentioned above. The plumber coming out next week is coming to look and decide where to start. Re: Water coming up near down pipe 16Jan 30, 2021 6:48 pm The water in the vertical riser will be the same level as in the downpipes. They can't be different levels relative to each other but the water in the downslope downpipes will of course be higher above ground. You would check the level in the riser, not the downpipes. I'm still wondering whether the trench is serving as a conduit for upslope surface water but why it comes to the surface at the middle downpipe is strange. I did however see in the photo what appears to be a wet area upslope from the downpipe along the path/wall intersect. Is this right? If so, then I am wondering how the seal is along that intersect and whether rain falling against the wall is able to seep between the wall and the path. 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: Water coming up near down pipe 17Jan 30, 2021 8:51 pm Rain doesn’t hit the wall as the eave is about 80cm wide. Not a lot of water lands on the path as it is narrow, and the neighbours roof and gutter is quite close. The only time water ends up the path is in a downpour where water overflows over the gutter which doesn’t happen much. Plumbers a couple of weeks back thought it could even be where the neighbours concrete path meets the retaining wall. They thought water could Seto through the gap, go down into the ground then under our path up next to the house. I don’t think those plumbers really knew, and they just suggested to change the piping fo the down pipes run externally rather than into the ground to see if it still happens. If not, we know there is a leak somewhere in a down pipe, I don’t really want to do this as it would cost about $1500 to change over to external piping, then god knows how much to then rip up the path and redo the pipes. Re: Water coming up near down pipe 18Jan 30, 2021 10:10 pm They have considered a possibility which shows that they at least thought about it in a professional manner but situations like you have are invariably difficult to pinpoint. It is a solid possibility though. One of the problems with a standard charged system is that the stormwater system is rerouted and even if you wanted to disconnect the rainwater tank, you would still have the expense and inconvenience of connecting the three downpipes to the water tank's subsurface drainage. For now, all I can suggest in the short term is to monitor the water level in the tank's vertical riser because that will tell you for sure whether the wet system sump has a slow leak or not. The downpipes appear to be 90mm pvc stormwater pipes, these hold 5.8 litres per metre (the internal diameter is 86.2mm). There are 3 DPs plus the riser that I assume is also 90mm pvc stormwater. This gives a total volume of 23.2 litres per vertical metre. One drop (not Apothecaries measure) per second is approximately 13.5 litres every 24 hours or 0.56 litres per hour. Even at this slow rate, the pipes would drop a bit more than 1 metre after 2 days. If the level does drop, you should be able to get an idea of the rate of leakage but sometimes the power of the Universe decides to deal a double whammy. Let's hope that it is a singular cause. 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: Water coming up near down pipe 19Jan 31, 2021 7:18 am Thank you for that. I have a question about the height of the water in the pipe leading into the tank. What should it be? Currently we only have a small amount of water left in the tank, about a 40cm height. The tank is about 2m high. I don’t know where it is sitting in that pipe, should it be at a consistent height? Re: Water coming up near down pipe 20Jan 31, 2021 9:46 am You will almost certainly have a 'run of the mill' charged (wet) system that delivers water through an underground 'sump' to a vertical riser that discharges the water to the tank's top meshed inlet. The water level will be at the height of the riser's invert at the top elbow unless the installer has also foolishly fitted a first flush diverter near the top of the riser. If so, the water level will be at the lowest point of entry to the first flush pipe. Additional information: The photo below shows a woefully fitted overflow pipe on the left (no mitigation) and an equally woeful vertical riser on the right fitted with an equally woeful first flush diverter near the top. So...why are (1) the vertical riser and (2) the first flush diverter also woeful? (1) The vertical riser allows mosquitoes to access the standing water because a flap valve cannot be fitted to a 45 degree elbow. The flow path is archaic and ugly. (2) The first flush capacity is too small (it probably holds about 6 litres) BUT in this situation, it actually wastes less water needlessly collected. The first flush (the initial dirty roof wash) only fills with the standing settled water retained in the riser since it last rained while the first flush will still be in the downpipe(s) at the end of the wet system! 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. DIY, Home Maintenance & Repair We have a hot water copper pipe that runs from our hot water unit on one side of our house under a concrete slab to our bathroom and laundry...old house so not ideal. The… 0 5345 Get some long brass machine screws and bolt right through the gate and put brass acorn nuts and washers on the other side. 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