I found it was VERY simple to tap the cold water line under the sink
go via a simple valve then "T" into the suction line between the
tank and the pump.
Now when I am on city water all I need to do
is open the new valve and watch that the water is not running out
the filler.
Make sure the "Burp" pipe on your tank is higher than
the filler and piped to the outside.
See You On The Road
Dean L.
WBCCI 2486