View Full Version : Drainage issue in patio area
09-17-2009, 06:24 PM
Apologies if this is not posted in the appropriate section. I have a drainage issue in my backyard. There is a slight slope away from the house. When it rains, in the middle of the yard and near the patio, there is standing water. My biggest concern is near the patio. Any suggestions on what I can do to drain out this water? I'm no where near technical, so forgive my ignorance but can i have some pipes around the patio that will collect rainwater and drain out to my street(see last image where the red would be pipes)? How would that work exactly if so? It's roughly 2 inches of water collected by the patio. If you guys can give me suggestions on what kind of systems will work that would be great. Would planting some hedges or trees around that area help soak up the water? Thanks
09-17-2009, 06:29 PM
your backyard has a slight swale. a swale is to take water away from the property. the reason your patio is holding water is because the surrounding soil is too high. in other words, it needs graded down (below the elevation of the patio). the backyard needs to be graded so that water has positive flow. it must continue to flow off the entire property.
09-17-2009, 07:17 PM
Thanks for your reply. Would placing 4inch deep pavers(or some kind of concrete barrier) on top of the existing concrete patio area help as a temporary fix? I know that would look incredibly dumb, but im not in the position to regrade the turf just yet. I was allready thinking of doing this underneath the area where my bbq grill is to elevate it from this water.
09-17-2009, 07:41 PM
from what I can see, the yard needs regrading. if you want a "temporary fix" - use sand bags.
09-17-2009, 09:40 PM
Thanks for your advice
09-17-2009, 09:49 PM
build a new patio or maybe a deck, common problem builders don't spend the extra $ to set a house up high enough and this is what you get. Draining to street would also fix the problem IF you slope it correctly, water will not run uphill.
09-20-2009, 09:48 AM
From looking at the pictures you provided, it could be as simple as removing the grass from the edge of the patio where the water is ponding. You seem to have fall away from the house and to that corner of the patio where the grill is located. You might be able to just take a flat shovel and cut the grass on that side down even with the top of the concrete. The grass seems to fall away from the patio on that side the further you get away from the patio the lower it probably gets. If you remove the grass from that side to the point that it sheet flows out into the grass you should be ok.
How far you have to go depends on how much fall there is away from the patio. It doesn't look like you would have to go that far. Maybe 3 or 4 feet. After you cut it down and its draining reseed it and you should be good to go. Now if all the water is coming down off the slope and bypassing the swale or not draining fast enough and accumulating on the patio, well thats another story. But I don't think thats the case. I think the water that is pooling on the patio just isn't draining because the turf is higher than the top of the patio. But hey what do I know.
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