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Old 10-18-2011, 12:49 AM   #1
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Indoor doorway flood barrier


Hi All,

I am looking to put a small 3-4 inch "step" in my laundry room doorway as there is a floor drain in there that has backed up more then once during bad storms. The bottom floor of my split level is half below ground level.

Purpose of the step would to hopefully prevent any water from making it's way out of the laundry room and into the family room. I have bought a water alarm and will also be picking up a utility pump as other preventative measures.

Now to the question - what should I build the step out of? Could a put down a piece of wood and cover it with cement? I've never done anything like this before so any suggestions would be appreciated. I'd be willing to purchase something specifically made for this purpose as well.

Thanks,
Tommy
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Old 10-18-2011, 02:14 AM   #2
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You are better to put in a gate that allows water to flow out of the house, through the drain line, but will not allow water/sewage to flow in to the home. That does mean tearing up the slab, so that you can install it.



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Old 10-18-2011, 06:51 AM   #3
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It would seem like plugging the floor drain would be a better fix.
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Old 10-18-2011, 07:45 AM   #4
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How about cutting a hole in the floor to drop a sump pump in.
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Old 10-18-2011, 08:57 AM   #5
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I'm not sure if the floor drain plug would work because I also have a bathroom with a shower floor drain which the water would then come out of.

I also thought about the sump pump idea... couple questions regarding that:

1) What is the smallest size pump/pit that can be installed?
2) What is the risk involved in breaking up the slab to install the pump on an old, settled house? Can it cause cracks which can spread throughout the rest of the slab?
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Old 10-18-2011, 10:58 AM   #6
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Cutting saw, then jack hammer.



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Old 10-18-2011, 04:16 PM   #7
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What about in regards to causing damage to the rest of the slab? Is it safe?
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Old 10-18-2011, 04:48 PM   #8
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If you're going to put a backflow restrictor in, do it on the main waste pipe out of the building.
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