Everyone says you need a water pressure regulator, but why? Well, a lot of these campgrounds are in rural areas that use a water pump to pump the pressure to all of the campsites. But to feed all the campsites, they need to run a very high pressure. A higher pressure than your RV is rated for. So make sure to come in to Bucars and find out which water pressure regulator is going to keep your RV safe today.