What happened to the one I "loaned" you a few years ago? (No, I do not want it back). I know a couple places (irrigation supply) in Bakersfield and one in Scott's Valley (near Santa Cruz) where you can get new ones, with end caps, but they're not cheap.
James my man.....what you want is 12" "100 foot head pip pvc " about $ 100 for a 20 foot length. Aqua Flo Supply in Goleta will get it for you and I'm sure that Todd Pipe can as well. You can by one from me for $500.00 with a well honed Ultra Sport 160 included...just what you need! LEW