I have a kitchen sink sprayer that makes a scrill ear pearcing sound when spraying warm/hot water (does not make the sound when using cold water only) How can I stop this noise?
Is this a new sound? Does it do it when you run hot water from the spout? What make and style is your faucet? What kind of pipes do you have?
Disassemble the sprayer hose from the faucet body and check for a blockage. Clean/clear and reinstall.
Disconnect the hot supply line from the angle stop. Check and clean it. Reinstall. Check the angle stop as well.