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Old 03-14-2010, 11:09 PM   #1
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Low spot causing water pool in garage


We have a very large garage and there is a large low area where water accumulates from melted snow from the cars. The pool can cover as much as a quarter of the floor and is just inside one of the garage doors. It's beginning to erode the cement. I was wondering about carving a sump and having a metal grill made. How would I get the water to drain from the sump? What else could I do? We've had no luck getting the concrete guy to return to fix it. Thanks. L
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Old 03-15-2010, 01:08 AM   #2
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grind a small trough to the garage door and drain it to the exterior
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Old 03-15-2010, 01:36 AM   #3
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How low is the low area - and it's approximate size / diameter?
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Old 03-15-2010, 09:20 AM   #4
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Th3e area is probably four feet by six with a gradual slope inward. When two cars are parked all the melting snow from both gradually pools there to make a shallow pond (1 1/2 to 2 inches) at the center and spreads out to cover about ten to twelve feet of the garage. Thanks for any advice you can offer. L
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Old 03-15-2010, 09:23 AM   #5
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is this new work?
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Old 03-15-2010, 09:27 AM   #6
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I hate ot say it, but at that depth (1.5-2"), you'd be better off tearing out the floor, or at least a good part of it, & having it pitched correctly. If the puddle was only 1/4" deep or so, I think you could score the floor to get it to run outside, but not at that depth. There really is no other simple, non-obtrusive, code compliant way to correct this problem IMO.
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Old 03-15-2010, 07:12 PM   #7
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Quote:
Originally Posted by babydoc View Post
Th3e area is probably four feet by six with a gradual slope inward. When two cars are parked all the melting snow from both gradually pools there to make a shallow pond (1 1/2 to 2 inches) at the center and spreads out to cover about ten to twelve feet of the garage. Thanks for any advice you can offer. L
Whew, that's pretty bad. Is there room to maybe add a cap to the whole garage area and make it level?
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Old 03-17-2010, 09:07 AM   #8
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i drill'd a hole in the ctr of our birdbath that'll work til i can get a slot drain into the garage
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Old 03-18-2010, 01:33 PM   #9
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I had a similar problem. When they poured the garage floor they gave me a nice slope towards the doors. Unfortunately, they left a lip right along the doors. Water puddled there, and the salt and mud made a mess. I tried scoring the floor with a concrete blade in my circular saw, but the the saw cuts filled with goo, and quickly became ineffective.

I rented a concrete grinder from UR with two big diamond stones. It was a gas powered beast, and quite a handful to run. I spent a couple of hours knocking down the lip the full width of the garage, tapering the grind from the door back.

My puddles weren't nearly as deep as yours. Maybe 1/2 inch. I took off about 1/2 inch of concrete in an area 2 feet wide by 20 feet long. Rental was $150. A big job, but better than tearing out the floor.

The ground off part of the concrete looks so nice and smooth, I wish I'd done the whole garage...

Last edited by houseinthewoods; 03-18-2010 at 01:36 PM.
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Old 03-18-2010, 01:51 PM   #10
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Thank you all for your replies. You have given me a couple of good ideas. Sanding a path to the garage door sounds like the easiest solution since the "birdbath" is pretty close to the door and the drive slopes away quite sharply. And, on second thought, the depth isn't quite as much as I estimated.

If that doesn't work I can try the slot drain.

Linda

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