I have a hole under my bathtub at ground level where the waste pipes
exit through the wall. The hole an arch-shaped hole, about the size of
a side plate. It has two copper pipes going through it. The hole only
goes through the block layer into the cavity.
Because of our recent rat infestation, I need to fill this hole with
something reasonably rodent-proof. In fact, I found a dead rat in the
space under the tub yesterday!
How can I fill this hole without whatever I use pouring into the cavity?
Cement? Concrete? Mesh? Expanding foam? Combination of the above?
It's hard to shutter it because of the pipes. Access is obviously not
great either, but not too bad.
My favourite ideas are to fill the back of the hole with foam and then
fill over the front with concrete or cement, or to stuff the back of the
hole with metal mesh and fill the front with expanding foam.
Any suggestions welcomed.
- posted 12 years ago