Browse Forums General Discussion 1 May 21, 2015 8:19 pm hi I was hoping people could help. My gutter overflows when it rains heavily the issue is that water then spills into the eaves onto the soffit which causes mould and in one extreme case it came into the ceiling. The issue I believe is I have one of those gutters where the outside face is higher than the inside (which is possibly bent over the fascia) it has weep holes but in a heavy rain storm the water is still backing up over into the eaves. The downpipes simply can't get enough water away. I have no tree or leave issues and I also recently had the stormwater flushed out at high pressure so it is definitely free flowing. I don't want to go to the extent of installing larger stormwater pipes underground (currently 90mm) A plumber on the phone mentioned the solution of something that can be attached to the downpipe which when the stormwater is backing up which I think is the issue in a big storm then the water kind of flows out of a diverter which stops the stormwater overflowing in the guttering. Has anyone had any knowledge of this sort of thing and whether or not its effective? Re: solutions to overflowing gutter 2May 21, 2015 8:45 pm Where do you live? Sydney gets to the point where nothing will cope. Otherwise put in more downpipes. Re: solutions to overflowing gutter 3May 21, 2015 10:05 pm gatoblanconz My gutter overflows when it rains heavily the issue is that water then spills into the eaves onto the soffit which causes mould and in one extreme case it came into the ceiling. If the water overtops the fascia, the installation is not compliant. How old is the house? Whereabouts on the gutter does the gutter overflow...for example, does it overflow at the downpipes or before it gets to the downpipes? 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: solutions to overflowing gutter 4May 21, 2015 10:46 pm I live in Brisbane. It gets into the eves both near the down pipes and away from them also. House built 1982. From what i have read and what some one said it is a kind of common issue that the side of the guttering by the fascia (house side) is lower than the garden side. But yes possibly not compliant. What about this as a solution? [/url]http://patonroofing.co.nz/site/patonroofing/images/Services/RWhead2.jpg[/url] Re: solutions to overflowing gutter 5May 22, 2015 2:37 am What you have described are high fronted gutters and most gutters fitted are this style these days but the gutters must still be installed so they don't over top the fascia. gatoblanconz A plumber on the phone mentioned the solution of something that can be attached to the downpipe which when the stormwater is backing up which I think is the issue in a big storm then the water kind of flows out of a diverter which stops the stormwater overflowing in the guttering. That style of rainhead will let the two sides of the gutter drain faster but if a gutter is overflowing away from the downpipe, a rainhead may not provide the complete solution. gatoblanconz I don't want to go to the extent of installing larger stormwater pipes underground (currently 90mm) If you suspect the downpipes have a restricted flow because the stormwater drainage cannot cope, then you need to determine whether this is the case by looking at the 'weir flow' characteristics at the top of the downpipe. If the downpipe is not flooded, then the downpipe is not restricted. An inexpensive solution may be to fit a Gutter Pumper (one of my inventions) near the section of gutter that overflows. The Gutter Pumper is technically a gravity induced vacuum pump and many have been installed in QLD. The Gutter Pumper is connected to a 20 mm (23.7mm internal diameter) pvc pressure pipe that usually diverts the high velocity full flow to the bottom of the downpipe but if the stormwater system is inadequate, then you will have to divert the discharge pipe away from the house. https://gutterpumper.com.au/ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ EDIT 6/6/2018. Updated website address. EDIT: 01/09/22 Added photo. 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: solutions to overflowing gutter 6May 22, 2015 3:15 am SaveH20, I just checked out your website. You have a great informative site with some products that i never knew existed. There are some great solutions to storm water issues. I am saving your site and recommend all forum members have a good read of the products you have. Re: solutions to overflowing gutter 8May 22, 2015 7:18 am Do you have a filter in it - like in a shower ? We have a tank so the gutters had these filters. No problem until it really poured down. Funny thing was it had a main filter to stop most things - then this smaller filter that the water could just not pass though quickly. If this second filter is removed - you still have the main filter - then the water flows well. We don't drink this water - only garden - so no worries with health. Re: solutions to overflowing gutter 9May 22, 2015 12:07 pm goody59 SaveH20, I just checked out your website. You have a great informative site with some products that i never knew existed. I only research and develop products for myself these days and they are unique because I don't copy other products. The Gutter Pumper is a highly efficient 20 mm inverted nozzle. A standard inverted nozzle is simply a 50mm pipe fitted near the gutter's high point with the top of the pipe rising above the gutter's sole. When the water level rises, it flows into the top of the pipe and invariably discharges to atmosphere. Because a 50 mm pipe presents a substantial obstruction inside the gutter, the BCA requires inverted nozzles to be fitted at the gutter's high point. I am against having devices overflowing to atmosphere because the water falls next to the house foundations. goody59 SaveH20, do you get that vortex effect in a rectangle shaped downpipe? Do you sell just a baffle to prevant the vortex effect to retrofit ontop of standard downpipes? The gutter is drained by a tapered pop that the downpipe fits to. Pops are also known by other names in different States. A 100mm x 50mm pop for example will usually be 92mm x 42mm at the bottom but it is the larger opening at the top that drains the gutter. Because water falls as weir flow, rectangular downpipes also have an air core. As a result and unless the downpipe's flow is obstructed, a downpipe will never have less than 3/4 air. The idea of having a baffle over the pop effectively describes an anti vortex plate but it is not a good idea for downpipes because having a supported flat plate above the pop would present an obstruction that accumulated debris. A pipe draining syphonically also generates negative atmospheric pressure and tougher pipes are used. Saint Mike Do you have a filter in it - like in a shower ? The Gutter Pumper is fitted to the gutter's high point unless there is leaf guard fitted. The high point is what determines the gutter's slope and the roof area drained to each downpipe. Water only drains into the Gutter Pumper once the depth exceeds 5mm and full syphonic flow requires a water depth of 25mm to cover the anti vortex baffle. By the time the water depth exceeds 25 mm at the high point during heavy rain, any debris is long gone. The inlet face is designed with narrow gaps and should a leaf block half of the inlet's face, the device will still operate with 80% efficiency. When the water level drops, the suction stops and the leaf simply washes off. Saint Mike We have a tank so the gutters had these filters. No problem until it really poured down. Funny thing was it had a main filter to stop most things - then this smaller filter that the water could just not pass though quickly. If this second filter is removed - you still have the main filter - then the water flows well. What you have described sounds like a leaf diverter with a coarse (usually about 6-10mm) outer mesh and a mosquito proof inner mesh. Mosquito proof mesh has to have apertures that are less than 1mm (1,000 micron) and 955 micron mesh is commonly used.The problem is that bird droppings and other finer decomposing organic matter fall through the coarse outer mesh and then either wash through or block the inner mesh, causing overflows. The situation is compounded during heavy rain because that is when most debris is washed from the gutters. I am currently doing final prototyping on a very low maintenance leaf diverter that has non meshed surface effect 500 micron filtration. With over 836,000 properties in Australia not on a water grid, the unit will offer higher yield and better first stage filtration than anything else currently on the market. The water savings potential is huge. UPDATE 23/10/22 We were unable to injection mold the filter because its intricate flow paths and surface effects that sucked water through 500 micron passages made building a molding die impossible. We are now considering the viability of commercialising a modified version that can be 3D Printed in ASA plastic but for now, the project is still on hold. 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: solutions to overflowing gutter 11May 22, 2015 12:45 pm Hi goody59 Syphonic drainage was invented in Scandanavia about 30 years ago and is used to drain large roof areas with smaller and fewer downpipes. The pipes are specially constructed because the high velocity flow creates sub atmospheric pressures within the pipes. If you Google "syphonic drainage" or "siphonic drainage", you will access a lot of information. I have linked a site below that has some nice videos including the 4 priming stages. The third "bubble flow" stage has a 'scouring' (cleaning) action on the pipes walls. The link takes you directly to that page. http://www.hydromax.com/144_HowdoesHydr ... eWork.html 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. In the end, two pieces of treated timber (20mm thick) were bolted onto the joists and planed when there was too much sticking out. Passed inspection. 13 7821 I would find out how deep your clay base is and depending on the depth install a cut off drain which is more than a normal agi drain. Where the neighbouring walls is… 2 3148 No, I even have sections of narrowness where the tiles won't slide up any further. When I manage some spare time, I might play around with the first DIY part of my… 7 4938 |