This past weekend has been very frustrating for my wife and I. Originally we had a clogged kitchen sink. After a full bottle of Liquid Plumber failed, I decided to look under the sink. I removed the elbows and garbage disposal in hopes to find the problem. When I did this I turned off the water to the sink as a precaution. After no luck I put everything back on just the way it was and opened the shut off valve to the sink, but came across a new problem. Our kitchen sink now has little or no water pressure. Just a small trickle. I can't shake the feeling that it is a small problem that is easily corrected. Note, that this is the only sink with no water pressure. We examined the faucet and saw nothing that could cause a drop in the water pressure. Please help!

 

When you started working on your plumbing, you likely dislodged some scale or debris in the lines.
Remove the aerator on the end of the faucet, check the water pressure without it on, and then clean or replace the aerator.
If it isn't the aerator, you may have to take your faucet apart and clean debris out of it.
Good Luck!
Mike