Seemed simple when my friend started, but get conflicting instructions on how to bolt the toilet tank to toilet bowl.
The instructions on the Kenny brand Plumb-Pak, which contained only bolts, washers, and nuts for this purpose says to put first a metal washer, then a rubber washer on the bolt, put the bolt through the tank and use the included hex nut underneath the tank. Then below the toilet bowl flange, the included rubber washer, the metal one, and the wingnut. This means tightening the hex nut directly against the ceramic tank, which sounds like a bad idea to me.
So together, my friend and I found two more rubber washers and two more metal ones and put them under the nuts directly below the tank (and above the bowl) and did the rest the way the Plumb-Pak-age said.
What do y'all think?