Originally Posted by Richro
Filter of antifreeze flushed when clearing lines on city water. I see three values. Two leading into top/bottom of water heater (perpindicular/closed) and one between water heater and water pump (parallel/open). This is how dealer left them after last winterize. I kept them in same position to flush antifreeze.
Now that you have other Pics.of your plumbing,this is what you have to do Now. Leave the H/W valves on bypass,remove the clear pre filter to your pump and empty the A/Freeze and reconnect, turn on pump and purge the system,remove main filter housing and install element,now turn W/H valves to Summer position and fill W/H.