What fungicide/mold killer is safe to put on porous CMU concrete blocks in my basement?
I bought a jug of RMR-141, but I noticed it says to apply to non-porous surfaces and it mentions places like kitchens and doctor's offices, not basements.
So, what can I buy for mold on my basement walls, which are made of porous CMU concrete blocks? There is a black film in the corner near the sump pump, and I think I want to just spray the entire walls to ensure any mold is dead once I get a new drain tile installed.
I've read bleach is the exact wrong thing to use. Thanks!