I need to recaulk my tub. I think the caulk there now is all-purpose
polyseamseal, which has no silicone. Aside from using a tool to dig
the caulk out, is there anything I should do? Some web pages mention
using a blow dryer or heat gun to soften it up. Is that useful?
Also, is there any solvent I could use? I think the tub is
fiberglass, and the wall is tile.

TIA,

S