My bath/shower drywall was recently tore out - builder installed tiles directly onto drywall. Well it rotted out and created a mold farm. I tore out all the old drywall and the copper pipes are green (not too much) and have like a white powder/sand substance on them at the joints. Is this from the flux? I have no leaks but since I have the drywall off, I'd like to do repair/maintenance now. Or is this a non- issue.
- posted
14 years ago