I just installed a Glacier Bay bathroom faucet, and while the faucet portion
works fine, the supplied drain is slow. Water takes a couple of minutes to
drain from a half-full bathroom sink.
At first I thought the plunger was not being lifted out far enough, but
lifting it with my fingers seemed to have little effect. The pivot arm below
the sink (the one that screws into the drain iteself, sorry don't know
correct term) seems to be traveling the full range of motion.