I am replacing a some large portions of drywall. At the seam where the new meets the old, there is a new tapered edge meeting the old square edge.
Should I ...
- sand the old piece so that there is a groove to fit the joint compound and tape?
- build up the joint compound so that they meet level, sand and skip taping so that it's even with the rest of the surface?
- Build up the joint compound so that they meet level, then tape and add more joint compound, leaving a bump?
- Tear down the new stuff and reinstall with the tapered parts removed, so that the pieces meet square edge to square edge, then do a
Thanks.
JK