Will a small hole in the toilet riser penetrate the wall if it is buried in the wall?

If it is a hole, you should use other PVC to cover it first, and then use more AB glue, because it is finally buried in the cement wall, so it is best to completely seal the surface with glass glue as a whole, so as not to bite off the original AB glue by cement acidity.

Just find a professional to fix it.

The left and right crooked are not serious, some showers can be installed, and if the upper and lower skews are too serious, you need to smash the bricks, which is basically a pre-decision and only smashes the bricks in the later stage.

Because it has been ten years since the delivery of the house, the responsibility is your full responsibility, and you should be responsible for finding the leakage, repairing, and repairing the downstairs. >>>More

Let's be honest. Unrealistic, unless it's not aesthetically pleasing.