Bath Mats Left Yellow Stain on Linoleum Floor?
Unfortunately, the rubber backing on the back of the rug causes a chemical reaction with the linoleum and turns it yellow. Supposedly the yellowing can be gotten off but I have not done this myself. Take a look at the many videos regarding the removal of yellow...
Removing Dark Stain on Vinyl Floor?
It could be adhesive underneath has caused a chemical reaction and seeped upwards.. or it could be there is water leaking UNDER the floor.. best to get it checked out rather than wait and have more damage
