over 40 years, this is a new one for me....

[Cleanworks]

You forgot the Gene Bates Perkins powered "Big Red" the Bohemth that could suck the chrome off a trailer hitch!

I use to use one of those. Very powerful but the weak spot was the Jabsco transfer pump.

 

[sassyotto]

well I said I would post. Seems like this one beat me. Tried Stain 1 and Red 1 both with and without heat, flushing well after each attempt. No change

 

[bob vawter]

well I said I would post. Seems like this one beat me. Tried Stain 1 and Red 1 both with and without heat, flushing well after each attempt. No change

View attachment 133369

Who rubbed on that?