Browse Forums Building A New House Re: New Build Foundation Nightmare 21Sep 14, 2011 2:05 pm In all the years I have been using these systems I have never had an issue with dirt accumulating at the bottom. No doubt some gets in there, but a good heavy downpour seems to clear it up. Yes it is low maintenance, once installed you forget about it. I was lucky in both my houses where the property was near the beach and on sand so I did not really need a sump pit for water collecting on the land. It soaked in before it was an issue. In clay soils this may be a problem and a sump pit for water run off from your land may be necessary, but at least the house is being looked after with the closed system and no flooded ceilings. Re: New Build Foundation Nightmare 22Sep 14, 2011 11:09 pm [quote="eyspy"]As promised, here is a mud map of the closed system, I hope it is explained easily enough ? And where does all the ground stormwater that runs down the slope towards the house go together with the ground stormwater around the house? Slab Down: 2/6/11 Moved in 13/3/2012 Current Status : Waiting for the garden to grow. My build thread : viewtopic.php?f=31&t=47031 Re: New Build Foundation Nightmare 23Sep 15, 2011 9:22 am Crow eyspy As promised, here is a mud map of the closed system, I hope it is explained easily enough ? And where does all the ground stormwater that runs down the slope towards the house go together with the ground stormwater around the house? You should read the posts more carefully as it has already been explained. Re: New Build Foundation Nightmare 24Sep 15, 2011 12:19 pm eyspy You should read the posts more carefully as it has already been explained. Actually I did read the posts, it just wasn't addressed in your rough diagram which didn't give the whole picture of the scenario. Someone else may look at the diagram and think that is the answer. I was just pointing out that in addition to the diagram the are other issues to be aware of. Slab Down: 2/6/11 Moved in 13/3/2012 Current Status : Waiting for the garden to grow. My build thread : viewtopic.php?f=31&t=47031 Re: New Build Foundation Nightmare 25Sep 15, 2011 7:13 pm Crow eyspy You should read the posts more carefully as it has already been explained. Actually I did read the posts, it just wasn't addressed in your rough diagram which didn't give the whole picture of the scenario. Someone else may look at the diagram and think that is the answer. I was just pointing out that in addition to the diagram the are other issues to be aware of. That's why I called it a 'Rough' diagram ! Re: New Build Foundation Nightmare 26Sep 15, 2011 7:20 pm Play nicely now people! Deemaree Kyndylan Capers: viewtopic.php?f=36&t=46852 My blog: http://www.sufficientlysufficient.blogspot.com/ Re: New Build Foundation Nightmare 27Sep 15, 2011 7:43 pm Trimbax. Any chance you can post a site plan showing ground levels? I'm having difficulties seeing how the builder is struggling to achieve dainage with only a 40mm fall across your block. Is the road level much higher? What stormwater is it that they cant drain? Roof or from ground level? Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: New Build Foundation Nightmare 28Sep 15, 2011 10:11 pm chippy Trimbax. Any chance you can post a site plan showing ground levels? I'm having difficulties seeing how the builder is struggling to achieve dainage with only a 40mm fall across your block. Is the road level much higher? What stormwater is it that they cant drain? Roof or from ground level? Hi Chippy, apologies my mistake I meant to say a 400mm (ie 40cm) fall from the street to the rear of the property. Still can't understand why such a minimal fall across the land cannot allow a gravity fed system to be put in place, perhaps I'm looking at it too simplistically ..? The builder is recommending a charge/seal system for the roof water runoff which means I cannot tap into it for any ground level water. My concern ****** with the ground level water - where does it go ? It presents landscaping challenges which I am uncertain can be addressed ? Re: New Build Foundation Nightmare 29Sep 16, 2011 3:01 pm Trimbax. Your downpipes would normally finish close to the ffl, so if you ffl is lower than the street level then your only option is to run a pressurised system as mentioned. For the ground water the only way you can gravity feed is if you are higher than where you are running too. Obviously for this to happen you would need to fill your block so it is higher than the street level (if this is where your storm water is going to run to). In which case I'm not sure if you have any other options than what has already been discussed. That is one thing I love about Perth. Lovely sandy soil with no need for ground water drainage, and simple soakwells for roofs. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: New Build Foundation Nightmare 30Sep 16, 2011 3:07 pm chippy That is one thing I love about Perth. Lovely sandy soil with no need for ground water drainage, and simple soakwells for roofs. That's the good thing about sand. My closed system takes care of the roof water and the land takes care of itself as I live only 400 metres from the beach it's all sand. Good stuff for stopping foundation movements as well. Thank you so much everyone. This all makes a lot of sense. I guess when you talk to a builder who butters up everything to look very polished, you get to start believing… 8 2249 A person needs to be licensed to offer financial advice. Surely the accountant you use would have been chosen for his/her expertise in this field. Have you asked your… 1 3100 |