Getting dust out of top of rear bumper?

So this is gonna sound stupid but what’s the trick to getting dust out of here? This is silt so it’s pretty nasty. Been there for two washes now. Never had this problem with other trucks.

 

Tooth brush and 303 protectant? Honestly idk, I never wash my truck that well

 

Toothbrush!

 

A brush of some sort and some kind of cleaning agent. Then use a microfiber cloth to clean up what you just loosened up with the brush and cleaner.

 

I was thinking a brush. I really got in there with my wash sponge the first time and obviously it didn’t do much. Looks clean when it’s wet then it dries and comes back.

 

Was thinking air compressor maybe.

 

Hit it with a brush, then use trim shine and an applicator pad. It will look good as new

 

Small brush and 303 works for a while but the dirt collecting there is just something that comes with the look.

 

Mine doesn't do it.

I've tried brushes does get most of it.

Think if I wanted all need a slightly stronger brush the one I was using was really for wheels.

 

I use a pole brush when I wash and I use it on that bumper. Never noticed any sand/silt though.

 

A soft brush works really well for me.

 

Paint brush. Been using them for years on my motorcycles and trucks.

 

other than brushes you can use the tire scrubbers which will work even better. Something like this:

Detailer's Choice 4B323 Contoured Tire Scrubber

https://www.amazon.com/Detailers-Choice-4B323-Contoured-Scrubber/dp/B008PPG77W