Some one must be thinking, "Hey, thats only copper pipe and you could have all of a person's weight on that and crush it, couldn't you?" Well yes, and no. NO, if you have filled the entire inside of the copper pipe with epoxy dough.

This is not the most elegant solution to a problem I would like, but it works. With a conduit bender you can only bend about a 6 inch radius corner in 1/2 inch conduit. Based on that, there is no way you can get the corners to land on the 2 1/2 wide sides of the seat, the pipe would have to be attached to either the front of the seat or the slats, which are not strong enough to support the weight.

So to get a tighter radius on the bend, we switched to copper fittings. We didn't use copper for the entire leg, because a 10 foot section of conduit is less than $2 and copper is over $10 for 10 feet. Also its going to be hard to keep this from turning green all of the time.

To hold all of this together we used epoxy, there is not need to solder these joints, to attach the cap and short pipe section to the elbow. We got out the epoxy filler stick, I used the plumbers stuff I got at HD instead of MarineTex. We kneaded small amounts of the 'dough' and rammed to down into the copper fitting with a stick until we had the entire thing full of epoxy filler. Now these copper fittings are filled solid with metal reinforced epoxy filler. And, yes this did get warm as the epoxy set up.

Now that the copper fittings are one solid unit, we moved to assembling the elbow into the conduit. But of course things do not fit as easily as they should. So we used a 5/8 inch twist drill bit to clean the burr and junk out of the inside of the pipe. Once that was done, things fit fine and we mixed some slow setting epoxy to attach the elbows to the leg. By laying this down on the 1/2 inch plywood back, we could make sure things were straight and parallel while the epoxy set up.