Cleaning out cowl drains

Spent a couple of hours on this operation today - any tricks to this? My outfit is always parked near a "Chilean Mesquite" tree and it just rains debris every spring...... Tried a narrow shop vac wand through the slot at the door sill - both suction and blowing. Also blowing down openings adjacent to the cowl. Followed the air with water in all the orfices. I don't think it all came out.

Ideas, stuff that works without taking the fenders off?

 

I just use a shop vacuum with a crevice tool.

https://www.google.com/search?q=cre...gobiAhUOSq0KHc00ArIQ_AUIDygC&biw=1920&bih=887

 

Air compressor and blow the hell out of it. On top and at the bottom. Open your hood and front doors, there is a small gap at the bottom of the door on the fender that collects leaves and crap also. Blow into that and everything blows out up top. I have to do this every couple months from my trees dropping leaves and clogging the drains.

 

Thanx guys -
I used the crevice tool first off yesterday on the shop vac - and some of the stuff came out, looks like compost. Raked a good bit out of the slot just ahead of the doors at the sill. Gonna go for air pressure this evening - that should have a bit more force to blast stuff free. Its a pain to have to do this - I can imagine the rust problem it would cause up in the "rust belt". In Arizona the typical dry weather and no salt gives you a chance to save it.

 

I pulled open the rubber cowl below the a-pillar and sprayed it with water until it was cleaned out. Mine wasn’t that bad, but I got tired of seeing the discolored water marks on the mud flaps.

 

I accessed in front of the doors as well. I used a flexible grabber to pull out the big stuff, then tried a shop vac with nozzle (helped, but couldn't get it all) and finally used compressed air with an 18 inch wand and blasted away. Amazing how much cleaned out. I then flushed it out with clean water.