A while back some had a thread about how to build a PVC pipe pig feeder.  Does anyone have a link to that or could point me to the right place.

Having spent the first 20 or so years of my life on a farm with hogs my first instinct is......................... NO.
Pigs can really tear up stuff.  The only pig pans that lasted were steel.  With sows in a crate the rubber ones with reinforceing threads molded in so they didn't tear weren't too bad but you'd have to watch them.
The cast iron ones were the only ones that survived till my mom sold the building site after over 40 years or so on the place.

If it was heavyenough material maybe it would be ok for small pigs.

My feeder

Intructions that I used

Thanks!  From your links I found this also...

http://www.wildhoghunters.com/content/424-how-build-pig-pipe.html

Hot: http://www.wildhoghunters.com/content/424-how-build-pig-pipe.html