ᐅ Pipe detached from the exterior wall. What should I do?

Hello,

I have a brick cellar wall, and there is a broken piece of conduit sticking out right at the wall. The wall is waterproofed. Through this piece of conduit, I need to run three cables to the outside.

How can I ensure that the opening with the cables remains watertight in the long term?

I would prefer not to remove the old conduit and replaster and reseal the area. My plan is to simply pull the cables through, fill the conduit with expanding foam, and then seal everything on the outside where the cables come out with the waterproofing.

After that, a drainage membrane (dimpled membrane) and soil would be placed against the wall.

Is there any reason not to do it this way? What would be the better approach?

Thanks in advance

I can recommend Henkel Tangit for something like that. You’ll also need the cartridge gun from Henkel... Well sealant foam doesn’t hold up when there is a lot of water pressure. I know several cases where water entered basements during heavy rain or flooding because of waterproofing with well sealant foam.

There are expanding sealants (Tangit M 3000 + Tangit M 4082). Additionally, I would glue in a sealing plug (Kaiser) and attach a sleeve (ABS LockSeal) on the outside of the existing waterproofing. This way, you essentially have three sealing layers that any pressurized water would have to overcome first. It might sound like a lot, but who wants to dig up the area again after only a few years to redo the work?