I worked on cleaning up and around the cowl vent from the inside of the car. I am trying to remove all of the debris that has accumulated over time. I had to vacuume the debris from the outside where the drain is located. I also had to move the debris from around the cowl vent from the inside then vacuume from the outside. I did try and vacuume from the inside a couple of times.
I decided to go ahead and put a coat of Eastwood's rust encapsulator on the outside areas of the vent area.