Ideally, I'd like to replace all my old galvanized piping, but it may not be practical to do this for some time.
I just bought two identical new faucet sets for my bathroom sinks, and on the boxes it touts:
"Drip-Free Ceramic Disk Cartridge Provides Outstanding Performance and Long Term Reliability."
Each faucet set has two of those (hot and cold) and one spout. Brand is Glacier Bay (Home Depot), and posts here say they are almost certainly Delta made, with Delta replacement parts. They appear to be chrome plated brass, and the popup's are solid brass.
I went into a local plumbing supply store in town yesterday. Although I was unaware of the place for decades, I was told they are celebrating their 100th anniversary this year! The one guy there said that unless I have decent plumbing, I can't expect ceramic valve faucets to last long. He said that with old galvanized plumbing (which sloughs off corroded metal continually), the ceramic valves will fail just a soon as compression valve's washers, and that in fact I won't be able to replace them but will have to replace the faucets!
Naturally, I'm alarmed about this. One faucet set is yet to be installed, but I installed the other a week ago. The hot water to that faucet set is from a newly installed on demand heater (Noritz), and the heater has a water filter in-line, just after the hot water comes out of the heater. I can easily and quickly clean out that filter by turning off the valve right next to the filter and opening it up (did so once already).
There's around a dozen feet of old galvanized from there to the faucet, however. The cold water, however, is sure to have sediment in it. Every time I take apart the pipes here and inspect the pipes, I find them in pretty bad shape. They pass water, but they are badly corroded internally. If I were to not use a pipe for a month or two (or maybe even a few days) the first time I used it, the water would come out brown for the first few seconds.
So, I'm wondering if I can maybe get serviceable filters I can put between the shut offs and the faucet sets in both bathrooms that will protect the faucets. Or is that guy incorrect about the issues? TIA for any guidance.
Dan