water tank

This may be a stupid question but.....when camping with hook ups, you hook up to their water via water hose. Do we need a pressure valve? Is the pump involved if hooked up to campground water? First time out tomorrow..finally.
Thank you advance.

[TrailManorMan]

Pressure valves are needed in some campgrounds, if on hose connection the water pressure is supplied by the hose and no pump needed. If no hook ups you need to fill the tank and use the pump. Have fun!