[VAC] Re: Water System

[Charlie/Betty Burke <cbburke@xxxxxxxxxxxxx>]

Dick,

Each new ShurFlo pump comes with a very good set of "guy directions" on what a
demand water system should look like. You can sorta see it on this PDF file from
their web site.
http://www.shurflo.com/pdf/rv/install_guidelines/RV_Install_Guidelines.pdf

Most systems these days have both a gravity fill (aluminum fill tube) and a city
water connection. The city water hooks in on the pressure side of the pump which
does not allow water to back flow through it. Early Airstream demand systems and
more and more newer coaches have a valve that can be used to bypass the pump and
allow city water to back flow into the tank

Charlie