Originally Posted by RamblerGuy
The photo I posted shows the valve arrangement on our 2011 Sunseeker.
I'm puzzled by the single three-way valve that Motocross posted. Does the tee on the hot water outlet line have a check valve in it? If not, then water and/or antifreeze would enter the water heater through the hot water outlet.
The single valve system has a brass check valve at the hot water outlet that prevents the pink from entering the hot water tank.
Turning the valve handle so it points UP will divert the incoming liquid into the vertical bypass pipe and isolate the tank.
The 3 valve system requires closing (turn 90 degrees in either direction) the top and bottom valves and open the bypass valve in the vertical pipe.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW