Pipe to use under walkway

Posted by sridharca none (My Page) on

Tue, Jun 12, 12 at 15:37

Hello Experts,

I am working on a walkway and would like to extend my downspout under the walkway.

For this, what type of pipe should I use- 4" sch 40 or the Triple layer drain pipe.

4" sch 40 pipe does not fit to the pop up drainer.

The triple layer drain pipe - will it collapse when compacting the subsoil before using gravel and sand.

Any help will be greatly appreciated.

Follow-Up Postings:

Both: install an outer pipe (the PVC) under the walkway to protect the real drain pipe that fits onto the downspout.

That way, if there is a problem you can pull out and replace the drain pipe without tearing up the walk.

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