Fireishot has a couple of piers using Tommy Dock hardware I believe...
I'm very happy with Tommy Docks. It's been a few years, but I was advised by Tommy Docks to order through Home Depot because of the pipe shipping costs. They could special order anything through T Docks, whether it was shown as available or not. I don't know if that policy is still the same.
Whatever you go with, I would recommend footings of some type. It'll keep the pipe from slowly working it's way down into the pond bottom. I use the round ones from T Dock.
2 level dock at hatchery pond.
Feeder dock at dam.
