First the problem. I have a new faucet that is 1.2 years old and has gone thru 4 ceramic disc cartridges.
Some Background. About 1.5 years ago, I planned executed a Major Master Bath re-model. Part of the re-model was massive relocation of plumbing. I decided that I would contract the pluming out to a lic plummer. As part of this project we picked out a series of Danze fixtures for the Shower, Tub and Vanity. The Vanity fixture is a Model D222658 designed for a Vessel sink. This is the faucet that is causing the problem.
Danze has been very good at supplying new cartridges, but I'm getting tired of R&R'ing them. After a replacement, it works fine for about 3-4 months. Then you will notice a drip in the sink. Now the sink is black, so the drips are very noticeable. If I do nothing, the drip gets worse and worse.
Also, when the dripping starts, if you use the faucet, you hear air in the lines, like the cartridge is allowing air into the line.
Two other points - The house is a 2 story building and this faucet is the "Highest" one in the house. The other point is the vanity is 36" tall. When installing the faucet, the lines that came with it would not reach the stub's in the wall. We had to use extensions (actually they are way to long) and have to be coiled under the sink.
I hope somebody has an idea, since I have lived in this house for over 20 years and at best only replaced 2 cartridges over that time.