Browse Forums DIY, Home Maintenance & Repair Re: Fixing gutter capacity issue around patio 2Feb 05, 2024 4:38 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Fixing gutter capacity issue around patio 4Feb 06, 2024 8:07 am 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Fixing gutter capacity issue around patio 6Feb 07, 2024 8:52 am 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Fixing gutter capacity issue around patio 9Feb 12, 2024 6:20 am 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Fixing gutter capacity issue around patio 11Feb 16, 2024 9:53 am This is a very challenging situation, made much harder by not being on site. Firstly, I think that I originally overestimated the % coverage of the additional roof areas to some gutter sections as the greenery shown in the overhead photo is (I assume) unlikely to overhang the patio. Is this correct? I don't know for sure where the gutter's high and low points are or whether the gutters pool after it stops raining. Pooling would indicate that the gutter's slope was levelled for aesthetics when the patio roof was constructed as is often the case. If there is a slope, the patio area gutter's low point would be either at the valley close to the patio downpipe as per the NCC Part 2 (BCA) regulations or even at the downpipe itself. The two high points would logically be at the ridge to the left of the downpipe adjacent to the patio area and also at the ridge to the left of the patio downpipe. Unfortunately, I can't see how the flow of water down each valley communicates with the water in the gutter but it would be rare for all of the water flowing off the valley to be directed towards the section of gutter flowing towards the downpipe. rsmallri The rainhead idea sounded pretty good. What about just doing that and maybe upgrading the downpipe and adaptor size and possibly a hole in the downpipe say 200mm off ground level? If that doesn't work I can try some of the other solutions. My experience with gutter overflows is that unless the downpipe or subsurface drainage pipe is flow restricted, the overflows happen away from the downpipe. In many cases, fitting a larger downpipe is not the answer. If you have overflows from both sides but away from the downpipe, you will need to attend to both sections of gutter. You need to find out (if possible) whether more than one section of gutter overflows. I also don't know how bad the discharge from the bottom of the downpipe is but there are two scenarios for its cause. 1. The subsurface pipe is flow restricted. 2. It is the result of the water flowing down the downpipe hitting the internal deadplates in the adaptor and the resultant hydraulic jumps resulting in water splashing up the space between the adaptor and the downpipe walls. Aesthetics aside and provided the discharge from the bottom of the downpipe is rectified, you could first plumb, as a trial run with the current guttering, an additional outlet to the gutter, divert the water the short distance to the downpipe and wait to see what happens. You might be lucky. 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Good day, My house is at the almost lowest point in the area, with two street sides - South and East. Dimension of the land is approx 28m*17m. In the diagram, the black… 0 4003 Thank you so much. We ended going with the terrain that’s part of our brick. 2 5014 My query is whether anyone has suggestions on if/how anything can be done with this setup. Forget the budget. 2 2112 |