today, i went back and tried to put in two faucets. it kept leaking. i did it three times and finally had to get a "real" plumber to finish it. turns out i was doing everything right, but the flux i bought today was caca. grrr. i can't charge the guy i did the work for since he had to pay the plumber.
at least i learned something, but damn, it was infuriating.