Drainage for Rock Wall

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  #1  
Old 08-08-11, 03:01 PM
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Location: New England
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Drainage for Rock Wall

Hello All:

I am preparing to build a dry stacked rock-wall and I am now adding drainage.

I found some white correlated pipes with holes at the 12:00 and 3:00 position that I assume is laid holes up so that the water enters from above but follows the pipe to its final drainage point.

My question is this. How deep do I put the drainage pipe? Do I lay this pipe on top of the gravel/crushed stone footing or beneath it on the dirt.

Regards,
B
 
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  #2  
Old 08-08-11, 04:57 PM
Join Date: Mar 2005
Location: USA
Posts: 6,126
The pipe is laid with the holes at about 4:00 and 8:00 or close to that. The idea is to collect the water from as low an area as possible. You will need the correct well draining gradation of aggregate and a sock may help for a short term solution of keeping the fines out of the drain pipe. - Use a solid (non-corrugated) pipe to carry the water away.

Dick
 
  #3  
Old 09-04-11, 03:58 PM
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thanks, what do you mean about the 'short-term'
Is there a longer term solution for keeping the drainage running?

thanks,
--B
 
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