How should I approach this?



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Use some minimal expanding foam to seal around the pipe, and Gorilla glue to hold the flange to the brick, gently put screws in after setting for decoration? Wear Gloves.

How big of a void are you looking at? How deep is the void from the back of the sillcock to the inside of the wall? If it is one brick, I would cut a piece of plywood to fit in behind and get some long deck screws to anchor to the wood. Cut the wood with a hole in it to go around the sillcock (or a U shape to saddle it). Spray your foam inside, and secure the wood against the back of the brick, even with duck tape. Screw the sillcock down so it pulls tight, and the foam will keep expanding to fill in the void. Use the rest of the can to fill in any voids where air can get into your basement while you're at it, that stuff doesn't save well.

I'd fill the void in the brick with hydraulic cement and use tapcons to secure the faucet.

I would second North Carolina plumber's advice

I've already installed the faucet and dont have much space behind there. Can I like, squirt the hydraulic cement in? Is there any that is pre mixed or anything?

Thanks for the great suggestions!



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if you are going to use hydraulic cement, you might as well chisel out a small amount of brick so you can get enough cement into the opening.

I would stick with foam or caulking. I wouldn't want to have to chisel out the wall because someone forgot to take the hose off and this one gets busted.

I've only ever had experience with the foam when I had to remove some from somewhere, but would it be enough to hold the pipe steady?

It will keep it from flopping around in the hole and getting damaged, and it will stop any air from leaking around it.

if you are going to use hydraulic cement, you might as well chisel out a small amount of brick so you can get enough cement into the opening.
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Make sure that any foam you use is closed-cell, or it will soak up water like a sponge. I think most of the foam in a can stuff is open-cell.