Melvin Mudgett-Price wrote:

>Yes, you could just join the 2 wires which would eliminate the switch
>because as you say, the pump only turns on when there's a drop in
>pressure at the faucet. I put the switch in there though because if
>there was a drop in pressure anywhere along the line, for instance,
>there was a leak, the pump would not only keep pumping until the tank
>was empty but until the battery was dead.
>
>As it stands, I turn it on whilst I'm at the sink and don't have to turn
>it off until I've finished doing the dishes and dried my hands, or ever
>if I trusted my own plumbing, which I don't. Also, if you have a foot
>switch inside you couldn't use the hose out of the window without a
>second person on the inside holding the switch in for you.
>
>
>
The water system in my folks Class A  has a pressure sensing pump.  Dad
didn't like it as it was always turning on and off.  He ended up putting
a tiny pressure tank in line, this evened out the knocking of turning
the faucet off abruptly.  This way the pump ran a few seconds longer to
fill the pressure tank, and didn't start for a few seconds after you
turned the water on (till pressure bled off the tank).  He got this
system for well under $50 at an RV dealership.  The service guys
recommended this as it increases the longevity of the pump

       JonR