I've had the same problem with my Moen faucet. Installed Feb 2011. Began "fizzing" about a month ago and getting worse every day. Has anyone found a replacement pull down faucet that doesn't have this problem (presumably a brand other than Moen)? I wonder if it's only the Moen sold through Home Depot/Lowes that have this problem (perhaps are more cheaply made?) Those who have contacted Moen, have you called or e-mailed them?