I had a water leak in the main water line. I fixed it. Now I have no water pressure in my bathroom sink. I have good water pressure in bath tub, kitchen sink... ect. Any suggestions as to what caused this and how to fix the problem. I thought there may be air in the line and it would work it's way out. I have left the water running, turned the faucet on and off trying to get it to work. NOTHING! Tired of washing my hands in the tub. PLEASE HELP ME!

Remove and clear the aerator on the bathroom sink faucet. I bet its clogged by debris.

Remove the aerator and turn the water on. If you get a flow follow smoothys advice. If not then Try this. Shut the water off and pull the cartridge, Check the inlet ports for trash and clean. Now place a pan over the open valve and turn the water back on for a minute to flush out the supply. You should have a strong stream when doing so. Reassemble and test. If that works do it on all affected taps, good luck, Tom