Re: towel rack
With the right anchor, you should not have a problem with the towel rack becoming loose, that is, as long as you're using the towel rack as a towel rack and NOT trying to use it as a grab bar to get in and out of the shower with. This is the #1 reason that towel racks fail, and can lead to serious injury. If you need an assistance bar, then you must go with a ADA approved grab bar that is installed into the studs.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!