underground drain pipe - Knowledgebase Question

stamford, ct
Question by krabsey
July 19, 2007
I just built a beautiful front porch. As an alternative to a gutter system which would detract from the lovely facade, we are thinking about an underground perforated drain pipe where the rain water drips off of the porch roof and then guided out to the street. The pipe only needs to be about 6-8 inches underground. I then want to plant a garden of maybe azaleas, boxwood and a few colorful perennials on both sides of the porch stairs. Will I still be able to grow flowers and shrubs on top of the pipe? Do you think the roots will clog up the pipe?


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Answer from NGA
July 19, 2007

0

Have you considered attaching decorative chains from the eaves of the porch? The chains will direct the water down to the ground (and into the underground pipe) and still look attractive. (Just a thought). You can safely plant on either side of the pipe. The roots of your shrubs will simply grow around the pipe. I don't think the feeder roots will clog the pipe, especially if they have adequate water and do not need to grow into the pipe to seek water. But, for added security, you can lay weed barrier over the pipe. This polyprophylene material has tiny holes in it - enough to allow water to seep in but not roots.

Best wishes with your new project!

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