Batwing awning, winter roads, undercarriage cleaning

Asking folks who have batwing or other awnings attached how they clean their truck undercarriages since they cant take it through the car wash any more. Maybe run a lawn sprinkler under there with the pressure turned up as high as possible? Don’t want to leave road salts / treatments under there forever.

Look for a touchless car wash. Some of them have under carriage sprayers and won’t damage an awning with no friction involved.

Thanks! Turns out there’s one local to me.

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for both salt and mud i throw a lawn waterer thingy or 2 under the truck and lt it rinse.