I have a faucet that is made of some nice metal that I'd rather repair than replace:
The cartridge in both handles that seems to me to be broken:
When the water supply is turned on, water slowly leaks out from the very top of both of the cartridges, right where the handles connect to them -- right at the blue line drawn on this photo:
I took the cartridge apart to see if I could see anything broken or deteriorated, but it all looked fine to me:
Not seeing any other solution, I replaced the two rubber O-rings inside the cartridges, but it did not fix the problem.
I am open to any solution which ends with this faucet and handles not leaking. I can imagine two solutions, and if there's another one I didn't think of that works, great!
A way to fix / install the cartridges so they don't leak.
The model number for the cartridges (or the entire faucet unit) so I can try to find replacement pieces for purchase.