Good day! I just replaced a kitchen faucet and a brand new issue has appeared. There is a water hammer noise and vibration when I use the faucet but the noise/vibration stops when I use the sprayer. The on/off water valves underneath are fully open. When the faucet tap is open, the sprayer dribbles. Is this a defective sprayer diverter on a brand new faucet? What could be causing this and/or how can I fix this? Many thanks for your time & input!!