Several years ago, we tried to peel wallpaper off a small bathroom. We discovered that the wallpaper was put directly onto the sheetrock and it wouldn't budge. What little we were able to peel off, began tearing up the sheetrock. So my husband decided we would just put a heavily textured paint over it. So that's what we did. I'm not crazy about it, but it will do. When hubby was out of town a bit later, I painted over wallpaper in our formal dining room and kitchen / eat in kitchen. Wallpaper wouldn't come off. Same situation. Fast forward to present. I wanted to paint the formal dining room again. Keep in mind, it already has one coat of paint over wallpaper. Hubby hated that you could faintly see the wallpaper seams. Again, we decided to do the textured paint. Well, I hate it. It's a beautiful color but the textured paint looks horrible. Now I don't know what to do with it. And to make matters worse, it's a deep red color. Hubby says we have to somehow get that wallpaper off. Can this be done now that several heavy coats of paint are on top of it. What can I do?

I have purchased a few 5 gal USG joint compound containers .I keep it in about 50 degree room and close the lid tight.After about 2-3 weeks there is mold on the top of the compound. I even tried to put plastic food wrap on the top compound (part not used),tried to use plastic under lid and tape it close but still gets mold. What can be done so I don't have to throw out the can.