I am not familiar with the staining power of rit dye on painted walls, but i do have a few suggestions.
How To Get Mildew Off Painted Walls. Safely clean and disinfect painted walls with common household supplies such as detergent and bleach. Scrub mold off with a rag or towel.
How to Clean Mold Off Basement Concrete Walls | Concrete ... from s-media-cache-ak0.pinimg.com
Scrub mold off with a rag or towel. Get the second spray bottled filled with very clean water and spray it to wash the area. But, i have a small patch of it on my painted wall and tilex says you can't yes tilex does say that it will harm painted walls but if you just wipe the area with some bleach it will remove the mold stain.
Learn how to get rid of mold and mildew with these easy tips from clorox!
Clean one vertical section at a time, ensuring there are no mold spores or mildew left on the surface. Here's how to tackle mildew in a few common places and the supplies you'll need to do it. Mildew and black mould on walls is not only unsightly — it can also be harmful to your health. You need to utilize a vacuum and partition off the space.