I bought a new house with this kitchen faucet six years ago. It started to drip because cartridge need to be changed. I found the faucet manufacturer warranty only for five years and other brands I asked from store for life time warranty. I hope I can get help to find the parts to fix the problem. I also have a bathroom faucet with the same problem as kitchen faucet. I'll start to deal with these two faucets. Keep fingers crossed.