I have heard from several other campers in my AO and they say that when you buy a new camper ASI just have the dealer normally gives you a starter it with hoses etc In the forums experience is this ...
most of these "starter kits" I have received contain one small water pressure regulator, which sucks, a very cheap stinky slinky, and a length of hose. instead buy a Watts type regulator, macerator pump or sewer solution, and another length of hose. but it is up to the specific dealer. bumpy