On Demand Freshwater Pump

Sandbank

Seaman
Joined
Jan 7, 2012
Messages
68
Hi all,I am installing a new automatic pump for my onboard freshwater system and was wondering as the outlet lines will have no water or pressure as have been drained (there is water to the inlet), is there anything special I have to do the first time to get the pump to work, as I understand they work on a pressure drop and there is no water in the outlet side for this to occur(or am I over thinking it?)
My idea was to back fill the system with a hose connected to the shower outlet, quickly seal it then turn the tap on??
Thanks
 
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