Cowl Cleaning

I made a J shaped attachment for my shop vac out of dry fitted 1" PVC and two 90 degree elbows. Taped the long end onto the shop vac hose and inserted from under the dash into the vents. I kept turning and readjusting the PVC pipe until I got as much as I could out. Then after doing both sides, I water flushed it from the hood side and kept the drain holes from pluging up.