If I want to install a down-spout extension and run it under a walk made of pavers resting on screenings/paver-base, can I just run corrugated pipe under the walk section or do I need to run PVC under the walk to keep it from crushing ?
Thanks Sid.
The PVC isn't all that expensive. I'd go with the old motto of better safe than sorry.
What goes over the walk? If it is just a walk and only the occasional human it may be OK with the corrugated if the soil along side is properly packed. I'd run the pipe so the pavers bridge it and not have a seam on top.
If you regularly go across it with your motorcycle, consider the pvc.
Traffic: Occasional. (Probably more for looks than function) The pavers are 4x8" and randomly placed to create a 'Tetris' like look. I don't see a way to bridge it. I'll look at how to run PVC for the first 6' and then couple it to the corrugated to go another 30' down to the back of the yard.
Thanks
What if I placed a concrete block on either side of the pipe and then a long paver across the top ? Almost makes you want to cover the pipe with sackrete ? Or would that be bad ?
I think that would be fine as long as the blocks are tamped down so it doesn't settle later.
Buying a piece of PVC or ABS pipe that is larger than the 4" corrugated so that it can pass through it sounds easier to me. IDK what that pipe goes for these days though. If they have transition fittings or you can otherwise mate up solid pipe to the corrugated, then you could use 4:".
How about something like this:
My concern would be aluminum corrosion underground. It may take a long time but might happen.
Decades ago in the back of my house with new lawn and drainage from downspout downhill, I went directly from downspout to PVC. I got new gutter and downspouts a couple of years ago but the PVC is still going strong.
I am seeing prices of $45 for a 10' section of 4" PVC. If I went with 4 of these 'Bond Beam Block'(s) for $10 total that could solve my problem. with PVC I would have to mess with a cutting and gluing a bunch of elbows ?
I just googled PVC and it is $18.93 at Lowes for 10'. Aluminum would be $6 cheaper. The blocks you show do look good and I worry less about load bearing than potential corrosion. Working with PVC is easy.
Be careful with terminology; I suspect the OP was referring to perforated drainage pipe rather than corrugated culvert pipe. While the latter is designed to support great weight, the former should be sufficient for a walkway covered with pavers.
What elbows? I thought it just had to go under a paver sidewalk.
He said corrugated pipe, that's not perforated drainage pipe.
I've seen shorter sections of PVC at these places too. Not sure they have them in the larger diameter sizes, but maybe.
Thought I would post a picture of mine:
I've used corrugated pipe buried a few inches deep in walking traffic areas for several downspouts, The only problem I've had is the covering soil eroding/washing away over time and exposing the top of the pipe.
I was looking at this stuff: Corrugated Pipes Drain Pipe Solid
PVC would be much cheaper.
That's not going to happen.
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