Old-Biscuit wrote:
Faulty pressure switch on pump.
When you open a faucet the ON-Demand pump should start almost immediately due to the instant drop in pressure, same if leak occurred and no pressure in line.....pump would start build pressure.stop repeat when/if pressure dropped
Pump would cycle repeatedly within short amount of time if pressure dropped provided the pump PRESSURE SWITCH was working.
When pump does run how is flow/pressure?
2011 camper probably has a Shurflo Classic 2008 pump.
That has been discontinued so any parts would be Old Stock
Pressure switch can be changed but easier and not much more in cost to replace with a Shurflo Revolution 4008 (little higher flow and bit higher pressure 3 gpm/55#)
The OP's pump is running just fine. The complaint is that there is no residual pressure with the pump OFF. This is a leak on the pressure side, either something is losing water into or outside the camper or (more likely) just leaking back through the pump.
Easy to pull the pump end off and take it apart. (6 screws). Check the rubber valves for debris and then re-assemble. Nothing much to lose. If that isn't it, add a check valve or get a new pump. This is all assuming there's no visible leak anywhere.
