: This morning the kitchen sink pressure was fine. Around noon time the pressure was extremly low. All of the other sinks in the house are fine. What is the aerator and the valve seat in a kitchen sink? I read mike's message posted on 12,9, 1999 at 15:27:42. Thanks, Lita

Lita,
Low pressure at the kitchen faucet? I would check the aerator first. That's the little screen setup at the end of the spout that the water comes out of. Cleaning or replacement does the trick most of the time. If that doesn't do it, you may need to check farther down the line. Terry