After 2 years of a leaking faucet and drain in my galley, I took it all apart. The drain is a simple problem. All that is needed is some plumbers putty and a new hose. The faucet is a vertical action pump with no name and no tie to any catalog picture or any web site catalog that I have been able to find. $3.90 at Ace Hdwre for O-ring assortment kits #49104 & 41018 and I had everything to rebuild the pump. After all the attempts that I have made to do it "on the cheap" it finally actually worked! Keep the faith, I paid $3.90, instead of replacing the faucet.