Kitchen sink faucet lost its water pressure
I did some preventative maintenance this evening by closing and re-opening the valves in my bathrooms, laundry, and kitchen. My procedure was to turn the water on at the faucet, close the valve, verify that the water flow had stopped, re-open the valve, and then shut off the faucet.
Everything went smoothly except for the kitchen sink faucet. This faucet is a one-piece design with a single stem controlling both hot and cold. Previously it had good pressure on both sides, but after closing and re-opening the valves under the sink, now it only trickles. I've doublechecked the valves and each of them is wide open. What caused this faucet to lose its water pressure, and how do I fix it?