On Oct 31, 12:30*am, wrote:
I'm about to re-paint a garage with same color --BM Navajo white.

It's kinda messed up, with bald patches where I had adhered those
little round discs that held vines.

Question: *Should I hose it down with Spic 'n Span (and thorough
rinse) before painting? *

Or superfluous?

TIA

Read any paint can, they require you to have a clean surface, paint
wont adhere long on dirt and mold plus any warranty will not exist.