I recently installed a Delta single lever faucet in my kitchen. After installation, when I turn on the water(either hot or cold) I get a HAMMERING of water out of the faucet. This is a very strong thrust of water and it comes out 4 -5 times. Then it slows down to once every 30 secs. This happens every time I turn on the water, and you can hear the stress on the pipes throughout the house. Any suggestions on how to fix this??????