Philly,

Thanks, I kind of figured it would work as I did not think the 3-port valves were designed to allow flow in only one direction.

BTW the answer to my question got to be your 500th post (I feel a bit honored) <grin>

Anyone else have any experiences or advice to add?

__________________
2012 Mercedes ML350 Bluetec 102K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 238K (mine)
1998 Volvo S70 T5 Turbo 211K (kids)
1994 Ford F150 4WD 246K (firewood hauler)
1983 Mercedes 300D 384K (diesel commuter)