Plugging a basement leak?

[Ed62]

As a lot of you know, I had a flood in the basement last week. I found that some of the concrete block had seen better days.

My waste line goes through the wall, into the septic tank. The waste line is in a place that's hard to get to in order to plug the leak. It is in the corner of 2 "walls" of concrete block. The shoulder of the waste line actually touches one of the "walls". I can see I have to somehow get something in the corner to block the leak, but I can't do it with a small putty knife because there's no room. The area that needs to be filled around the pipe is no more than 1/2", probably less.
I could probably reach in there with a screwdriver or something, but I wouldn't be able to use hydraulic cement. Is there some kind of "rope" or other product I could use to fill the void? I won't be able to move the screwdriver much, if any.

Ed

[capncarl]

ED 62

Would it work if you just built a wood form and poured the whole corner behind the pipe with hydraulic cement? Then you could use a piece of wire or something to the help the cement flow into the crack and coax the air out. It does not look like anything that you have to have access to for clean out purposes.

capncarl

[Seedy]

Ed- You might be able to use oakum. You could pack it in with a punch or screwdriver anf then pack hydraulic cement around the whole thing. I don't know if the borg sells oakum- not much demand for it anymore. An old plumbing shop should have some laying around.

-Craig

[herb fellows]

Maybe expanding foam? they have the straw attchment so you coud get in there a ways.
You can also buy empty caulking cartridges. You might be able to put something in there that you could squeeze into the area. Might need an extension tube from the cartridge nozzle, maybe 1/2" o.d. plastic tubing? That's all I've got.

[Ed62]

You might not believe this, but Liquid Nails seems to have done the trick. The caluking tube just reached far enough to do the job. I used aluminum flashing after filling the void. The flashing was liquid nailed to the wall. Thanks for the suggestions. I think it's gonna be OK.

Ed