We replaced our kitchen fauset now we have a thumping or knocking noise in our water lines How do we stop that.

Shut water off at main. Open all faucets and let drain. Be sure to open lowest faucet in house.

Remove aerators. Turn on main and shut faucets off starting at top. Replace aerators.

U have recharged your system and should have gotten rid of water hammer.

If still problem, get back to us and we will see what next step is.

Good luck

Chuck