Don't have the same motorhome but my system recommends opening all the taps before turning on the pump to allow air to escape. Then close taps when a steady stream is coming from all of them. How often is your pump running? if it runs frequently when the taps are closed, you could have a leak in the system.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets