Drainage question.

JayinNY

Well-known Member
How would you do a drain tile for a 2 foot retaining wall? Our situation was 6 inches of compacted rubble on clay, under the wall, then my brother wanted filter fabric, behind the wall with 1 inch for stone under the 4 inch pipe. Then crushed stone up to 2 inches below grade. I dident see the need for pipe. Just pitch the ditch, fabric and stone. What will the pipe really do? Any thoughts. Thanks,
 
Far easier to err on the conservative side than to have to redo it later when your efforts weren"t effective. I"d put it in while you have it open. Won"t cost much.
 
Jay the cost is minimal. The pipe, as said will relieve any hydraulic pressure, especially in freezing conditions.
 

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