I have a 20 gallon parts washer from northern tool and i filled it with 5 gallons of parts wash i bought from northern as well. I diluted it with a little bit of water like your supposed to. Now whenever i wash any of my parts in it, there leaves a light brownish(almost red) dirt like residue on the parts after it dries. Im really pissed too cause i had parts washer solvent in there beforehand and i started noticing it so i cleaned my washer and spent 50 bucks to change the solvent with new stuff of the same brand and it still makes the brown residue. I'm cleaning internal engine parts so thats why im making it into a big deal. What is this residue? Should i be worried? How can i fix it? I really need help BAD!
Thankyou
Thankyou

