"B" wrote in message
m...
What kind of corrugated plastic pipe would you put behind a retaining
wall?
Slitted or with holes, if with holes, would the holes go up or down? And
what about fabric sleeves vs. burying the pipe under gravel wrapped with
landscape fabric? I've heard every combination of answers. What's your
answer, and why? Can you give a link to reliable info? Thx.



As said by others, PVC holes down. My reason for PVC over the corrugated
pipe is that sometime in the future you may have to run something up the
line to clean it out. If you have to remove roots the cutter tool will come
out with chunks of black corrugated pipe as well as the roots.

CR