I've never had any issues with faucets....I have a delta diamond valve kitchen faucet (single handle) I put in 4+ years ago, still works fine. My basement bathroom I constructed from scratch is higher end American standards (tub/shower valve, sink, and toilet) no issues there either....Other faucets upstairs are moen. Had to replace a valve cartridge on one 3 years ago but that's it. Tub has 55+ year old original Briggs faucet valves, STILL works fine, no leaks.
I suppose the seals may have been replaced before, but I've never had to touch them.
Then again our water system around here is above the national average in quality, so that probably helps too.
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