How do i get this out?

bowler

Petty Officer 1st Class
Joined
Nov 9, 2009
Messages
293
I but oxalic acid in powder form. Mix my own brew with cornstarch as thickener. That minimises the run off and protects the trailer. Some say use wallpaper paste but if you do and it gets a chance to dry it's a pain to remove.
 
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