

First spa day: successes and advice needed
My wife convinced me to try out a spa day. Some successes with a stunning example shown of our puppy’s collar. Inside and outside are more the same color!
However i have many items that did not come clean. These are shirts and pants that had serious non-organic stains. I am a wood artist and i get a lot of sawdust from raw driftwood (can have mold and sap) that mixes with tung oil. My best guess as to what these stains are. I can add photos to a comment once these pieces have finished drying. Any tips on n how i can effectively get rid of those types of stains?
Picture tax of before and after puppy color.