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Question DetailsAsked on 5/11/2011

Drain line backing up

I have a 25' X 4'  drain line under my concrete basement floor.  It frequently backs up.  Snaking it clears it for a while, but I would like to have it jet cleaned.  Can jet cleaning be done through a 2 1/2 inch floor drain?

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1 Answer


I realize this is a VERY old question, and I clicked on it as a possible reference response for another current question.

Just in case you did not get it answered - the answer is probably. If it is a gooseneck drain with a trap, a sewer and drain cleaner might be able to get 25 feet or hose through it, if he would risk it or if he has a small diameter rig. If a straight down drain without a trap (unusual in floor drains), then yes, no problem - generally only need about 1-1/4" line for the jet or a snake, mini-jetters go as small as 1/4" pipe, but most plumbers have the about 3/4-1" diameter ones designed for the standard household 1-1/2" and larger pipe.

If this is a line that has a main sewer line leading into it, or a toilet near the start of it, the best way to clean it is to run a router (full diameter scraper) through it from a sewer cleanout or by dismounting a toilet for access - that way a full diameter 4" drain cutterhead can access it - look like this - last photo on page, look at the U-shaped scraper / cutter tip -

I also recommend, if gettingthis done, is have them chase it all the way to street sewer, otherwise you risk what they cleared just getting hung up further down the pipe and backing up again in a few hours to days.

Answered 6 years ago by LCD

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