Originally Posted by GOB
You can probably replace the whole faucet for $10 - 15.00.
Or for free is you want to come by here and get the original cheap one I took out. It really is just as easy to replace it as fix it and assuming it is original to the camper then here is a chance to upgrade from what was the very least expensive one which was available at the time.
I got this one
for just under $15 for a single tap (no hot water). Its OK but I wish I got something ever better quality as this one is also a cheap plastic one and not much better than the original.
Maybe go ahead and start taking it apart to see if you can fix it, and then have replacement as plan B.