I work with Campers on Mission building churches etc. When on building site, we may have 5-10 RV's hooked up with a series of "Y" fittings to one fawcet. When we all quit work for the day and head to the shower, you may or may not have sufficent water pressure. We all keep water in our tanks , hooked up to the water supply and our pumps turned on. That way, when multiple people are using water, the pump supplements the shore water to keep the pressue up.
F250 HD 7.3 Diesel :)
31 Ft RLS Designer 5th Wheel :D