This is one of those 'so simple I can't believe I didn't think of it
myself' stories.

Wife picked up a Mr. Coffee at a thrift shop- tried to run a pot of
coffee through it and it just spit and sputtered for 1/2 hour and the
12 cups we put in dropped 2 cups into the pot. The rest was steam.

It was a nice looking pot, so I tried cleaning it-- then dismantled
it. I didn't see anything obvious- so I Googled and found this
page-
http://nepacrossroads.com/about18852.html

I already had the bottom off, so in less than 5 minutes, I popped off
the rubber hose with the check valve in it- blew the wad of paper out
of the check valve- and reassembled.

Works perfect now.

I wonder how many pots I've tossed that could have been fixed so
easily.

Jim