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Question DetailsAsked on 9/26/2013

The underground pipe for my rain gutter downspouts is plugged. Who do I call to unplug or route it out?

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3 Answers


If only 20 feet or so, a plumber can handle it with a snake. If longer, then probably need a Sewer and Drain contracor to power rout it out.

It is likely only leaves plugging it - take a hose with a metal spray nozzle like this -

on it set to a tight jet, and run it up from the OUTLET end with the water on full, working it back and forth as you go - it will blast away the debris in there and wash it out. If the hose will not go in due to kinking, you can buy a female hose adapter to PVC fitting at a building supply store or plumbing shop to fit the hose thread, and attach it to 3/4" PVC pipe and use as many 10' length(s) of PVC pipe as necessary to go up in the drain pipe - I would use threaded glued on couplings so you can disassemble it when done and reassemble it next time you need to do it. If you are real careful not to get it stuck in there, you can just use glue type couplings but only press-fit them together and do that, then just pull them apart when done and you are back to full-length pieces of pipe.

Answered 5 years ago by LCD


Nice answer from LCD. Perhaps an ounce of prevention, a gutter cover that does not allow debris into the underground drain.

Jim Casper

Ps for some sugestions see my blogs


Answered 5 years ago by jccasper


One other hint - NEVER put a downspout into a tight-fitting drain pipe - you do not want your downspouts backingup if the drain pipe gets frozen or clogged. Always lave an air gap - either the downspout loosely fitting down into just the top of the inlet of the drain pipe (not deep down it n or it can become part of the clog or icing too), or drill a 3/4" hole in the side of the downspout - the side away from the house and just above ground level, and be sure the downspout is slightly tilted away from the house so this hole is not in the normal flow of the water down the downspout.

Answered 5 years ago by LCD

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