Rubber Roof

[Rubber Roof]

We have small bubbles appearing on the rubber roof of our motorhome.

It may be the glue failing.

Has anyone had this problem?

Any ideas on fixing the bubbles?

[Fungus Or Growth InToilet Pipe]

We have a Class A Motorhome with a Thetford Aqua-Magic Style II Toilet.

When brushing out the toilet pipe that goes from the toilet to the black tank we noticed something growing in the pipe like a white fungus.

We cleaned it off the pipe, but about week later we noticed it growing back again.

What can we use to get rid of this permanently?