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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorjfb
    • CommentTimeMar 19th 2015
     
    I am wondering if you can combine land and storm drain.

    I am planning to put in some french drains along the side of a couple of barns. I also have to sort out storm runoff from the main farmhouse and barns and since I am in a very clay heavy soil I am planning on running it all to a watercourse at the entrance to the farm.
    I have had some advice from a local digger operator/ builder type who has said it is fine to run storm runoff into corrugated pipe used for the french drain. It would cost a lot more and be a quite a bit more effort to run both a perforated pipe (for french drain) and a sealed pipe (for storm runoff) in the same trenches so if I can avoid doing so I would.

    Is it a good idea? Is the issue that if water table levels get too high there is a risk that the storm runoff will have nowhere to go?

    thanks for any advice
    john
    • CommentAuthorCWatters
    • CommentTimeMar 19th 2015
     
    You may need permission from the EA to use the watercourse.

    Otherwise I don't see any problem as long as the layout and capacity of the pipe is ok (eg big enough diameter and fall). If you want you can get half perforated pipe which is laid with the perforated half up.

    Make sure slurry can't get washed in.
    • CommentAuthorjfb
    • CommentTimeMar 19th 2015
     
    I thought the perforated half (if not perforated all the way round) is meant to go at the bottom if it is meant to be taking water away - otherwise the water has to fill up around the pipe.

    I guess it depends if it is for land drain where you are trying to take water from the ground (so perforations down?) or storm run off (where I suppose perforations up is better).
    • CommentAuthorCWatters
    • CommentTimeMar 20th 2015
     
    I thought it's up for a collector and down for a dispersal?
    • CommentAuthorDarylP
    • CommentTimeMar 21st 2015
     
    No. slits downward to collect rain/ground water, BUT avoid fines silting up the drains.
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