It is just setting on the pvc. I did a crappy job cutting the pegboard so I placed the pvc at the beginning so the water would kind of flow over it rather than letting too much go down prior to it making it to the holes and distributing it somewhat evenly. I had the piece at the other end for pretty much the same reason.Did you just balance the peg board on the vertical pvc? or is there another part holding the pegboard 'down'