draining problem in new drain.

[mrbuckaroo2003]

 I just installed a new faucet in a bathroom sink. I put in a new drain new p trap and new pips all the way down through the floor. It was draining a little slow before I put all this in but not bad. now it is draining very slow. and I cant seem to figure out why. can anyone help with this problem

[mckenzie]

may be i the process of replacing the drain you eliminated the vent, it is also possible that maybe the p-trap is to far back into the tee and not allowing proper air flow for it to drain or the clog is under the floor