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Construction Question
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Author:  grinner getter [ 24 Jul 2013, 19:55 ]
Post subject:  Construction Question

OK guys,
I am putting in a new home shortly and want a full basement. I have located a local contractor to install the basement however I have been told to back fill the house all the way with pea gravel. This is supposed to facilitate drainage and keep pressure off the walls. I guess because it dose not settle like dirt? Once I dig down about a foot I hit Clay. Any input would be appreciated.

Author:  trappintime [ 24 Jul 2013, 21:38 ]
Post subject:  Re: Construction Question

I know a lot of houses that are old and they ain't got it. :shock:
I probably live in a drier and poorer land. :cry:

Author:  coyote 1 [ 25 Jul 2013, 01:49 ]
Post subject:  Re: Construction Question

You may have to use an excavator to dig the clay out. In some states / areas it is code to have pea gravel backfill.

Author:  grinner getter [ 25 Jul 2013, 13:36 ]
Post subject:  Re: Construction Question

Thanks Guys,
They are bringing in a Track Hoe to dig the basement. Not something I want to try, my luck all I would end up with is a small deep pond. I am however doing all the fill work to save some money and I think I am going with the pea gravel. While it may be a little more from what I have learned it may be well worth the cost. Digging the first 150 feet of the driveway I am waiting until the basement is done to do the rest. Clay then 2 inch limestone then 4 inches of CA6 then 2 inches of white rock and a lot of hope that it holds.

Author:  Musselshellgal [ 25 Jul 2013, 13:57 ]
Post subject:  Re: Construction Question


I've heard about French Drains for years.. might be something you'd want to research and try.

Author:  doc9013 [ 25 Jul 2013, 14:56 ]
Post subject:  Re: Construction Question

I back-filled mine with river rock. Lot cheaper than gravel.

Author:  Richard Murray [ 25 Jul 2013, 15:17 ]
Post subject:  Re: Construction Question

Ok gg here we go. Going to give you a little 101 construction lesson. I've been building houses and remodeling for 31 yrs. After foundation is poured and waterproofed you are going to want to buy 6" corrugated water drainage pipe. It is very flexible and is perforated. Before back filling the pipe goes in the bottom all the way around the foundation and then with a T connector connect the ends together and then another piece of pipe connected to the T leading away from the foundation. Make sure the foundation is water proofed before doing this. The water proofing is a black spray on tar or brushed. Spraying is much quicker. Water proof it from bottom to above ground level. Then you can back fill with the gravel a couple of feet, the rest of the way up with dirt. Dirt will settle so put it plenty high enough above ground level. After it settles you may have to put more. With the dirt a little higher than the rest of the yard it will help divert the water away from foundation. What the pipe does is it collects the water through the perforated cuts at the bottom and drains it away from the foundation instead of just sitting in the hole. Hope this helps. If you have any questions feel free to ask. Just reply on here or you can pm me. Will help you all I can!!!!! The only weakness I have is electrical. :wink: :mrgreen:

Author:  grinner getter [ 27 Jul 2013, 20:50 ]
Post subject:  Re: Construction Question

Thanks guys and Gal,

Richard Ill be sending you a PM shortly

Author:  Richard Murray [ 27 Jul 2013, 22:29 ]
Post subject:  Re: Construction Question

grinner getter wrote:
Thanks guys and Gal,

Richard Ill be sending you a PM shortly

Okie dokie. Going to bed shortly so if I don't answer tonight, I will in the morning before work. :mrgreen:

Author:  Mohawk [ 30 Jul 2013, 09:14 ]
Post subject:  Re: Construction Question

Richard is right on the money! :wink: Will you have a walkout basement? We well have to have pics of the process. :lol: I like the "socked" perf pipe but it doesn't really make much difference.

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