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one way drainage

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JasonR
Join Date: Jan 2006
Posts: 142 Northern Indiana
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2006-03-27          126745


I'm getting ready to update the drainage around my barn. First a little history as to why I'm doing the updating...

When the barn was built, the finished floor level was 14" above the existing grade. The barn is near a creek. A couple of years ago, there was a terrible storm, where 2 inches of rain fell in under an hour - and that was combined with torados in the area. The result wasn't any flooding, but the creek filled up, and didn't drain as fast as it usually does due to the downed trees and branches. Two days later, we got an additional 5" of rain. The end result was the water level around the barn was 1" above floor level (it was still under construction, so no damage.)

continued...




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one way drainage

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JasonR
Join Date: Jan 2006
Posts: 142 Northern Indiana
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2006-03-27          126746


With the dirt left over from the parking lot, I constructed a berm around the barn such that the berm level is about 10" above the finished floor level. Hence I think I’m covered for another once-in-a-lifetime rain, but I want to improve my removal of water from inside the berm. All gutters from the building drain into the creek, and the drains are slightly higher than the berm - so water can’t back up into those drains (unless I’m already under water.) With the area that I have below the finished floor height inside the berm, I can take on 2" of rain without any drainage. My only method of drainage right now is a couple of sump pumps in an outdoor pit. Under normal conditions, these don’t even kick on until I’ve gotten 1" of rain.

What I’m looking to do is install a gravity drain into the creek. The creek is normally empty. In the event of a large rain, the majority of the water inside would gravity drain prior to the creek being high enough for a one-way valve to stop the drainage - at witch time I would rely on the sump pumps. This would be helpful in the event I was without power for a while - giving me time to get the generator running. Luckily I live near a substation, and I haven’t ever lost power for any extended period of time.

My question is, other than ‘cleanout’ one way vales or flap gates - any recommendations for creating a fail-proof one way drain for this project (or any other ideas for that matter?) ....


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one way drainage

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Peters
Join Date: Feb 2002
Posts: 3034 Northern AL
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2006-03-28          126767


Jason; I have never looked for info on this for drainage, but it is common for marine applications. I would look through a marine catalog, there are also ball float valves but I am not sure how well they would fare with the dirt. ....


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one way drainage

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Murf
Join Date: Dec 1999
Posts: 7249 Toronto Area, Ontario, Canada
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2006-03-28          126770


We use a reasonably priced, fairly dependable system.

Two ABS reducers with a fairly short piece of pipe between them, large ends joined, before you cement it all together put a squash ball in the pipe.

When water goes in from the top the ball floats and water goes down the drain, when water comes in from below, the ball floats all the way to the top and plugs the inlet pipe, preventing the water from rising any further.

Best of luck. ....


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