Best to go ahead and replace the faucet
Biggest problem with water systems on the road is that we never get the same water quality all the time. Sometimes water is soft, and next time it is hard. The mineral build up reduces the life of the unit, whether it is a faucet, an ice maker, or a shower head.
It's the reason I use a water softener everywhere I go.
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.