We had to change the tap set in the kitchen as it was leaking, hairline crack somewhere.. not fixable. Everything Gerry said is made of plastic nowadays and we get alot of vibrations in the RV when traveling. Our RV is a 2005 and we arent sure either that it was the original set. But new set only costed $13 USD from Walmart.
Decided also to change out the set in the smaller bathroom as it was white and got dirty very easy. Dirt always got it's way into all the nooks and crannies. The new set I got, also from Walmart, only $10 USD. Before and after pics below.