It kind of looks like mold. If there is a dip under the stain could it be that somehow water got into the plywood floor base and the dip you are feeling is rotten wood and mold coming through the vinyl?
So not sure what is going on here? I've been unable to clean this stain, which makes me think something is bleaching thru from underneath? Also feeling the floor there, it isn't even, there is a slight small dip under part of the stain.
View attachment 76080
Pull it up and take a look, this was markings made on the plywood during the build that eventually came through.
Escape worked with me to get things right, the trick was having someone capable of doing the work.
Pull it up and take a look, this was markings made on the plywood during the build that eventually came through.
Escape worked with me to get things right, the trick was having someone capable of doing the work.
What did you end up doing? Seems like a major job to replace considering the flooring goes in first with all the cabinets on top of it.