1) If the assembly fails the "pressure test" and is too wet to unsweat
(desweat?) do you just recut the pipe and start over?

2) I am putting in two Ts; one to a waterpowered sump pump, and one to a
valve and stub, to be used for a new outside faucet this summer. I
assembled everything, and intended on cutting out a section of pipe, and
installing the assembly with mending couplers.
I told a friend about it and he said I was doing it completely backwards.
He would cut out a piece of pipe, put one T on either end, and then (after
pushing the pipe apart somewhat) putting a pipe between the Ts.
I guess that makes sense, since it eliminates the need for the mending
couplers, but requires pushing the pipes back to get the connecting piece
in.
Is he right about it being the right way to do it?