Vintage Air evap case drain

Anyone other then me having a problem with the evap case not draining. Talked to Vintage Air rep at a show a while back and he ***ured me that it wasn't there case it had to be my install. Well the case is installed correct and the drain rubber tube is on a good angle and open and the truck sets on about a 2 inch rake. So I think it is a blockage in the drain area of the case but I have no idea what would happen if I tried inserting something in the plastic tube. Any ideas what is going on in the case in the drain area.

By the way if you really want to drain the case just turn the defrost on and you will have a nice and wet windshield and interior.

This installation is in a 56 Ford F100

Thanks Chuck

P.S. Other then this problem system works just fine, in fact it will freeze you out of the cab (well at least here in Michigan).

 

Might have some algae clogging the drain tube...

 

Every time I had this problem, it was insulation clogging the drain. Usually caused by a rodent. Make a little wire hook you can insert in the drain, and you can usually get it cleared.

 

Ok will try that in the morning

Thanks Chuck