Couple of brews ago i broke a part of my system that pumps wort up through the malt pipe on the second rest of a multistep mash. Couldnt fix it at the time so raced into the shed and bent a copper pipe and drilled some holes in it and set it up basically the same as your setup.
Had to dick around with the valve to get the flowrate correct but it worked fine in the end. I have since changed the rig a bit to pump up again as basically once doughed in the pid takes over and it needs no supervision which is the major benefit of pumping up versus the gravity down system.
Cheers
sean
Hey Sean, it would be great to see some shots / get some more info of your build so we can see the difference between the two.
Did you get your PID from ebay?
Cheers,
BlackRat