A New Member Here
Our rig also has a Kantleak system, but ours includes a second valve for the water heater. Assuming the main valves are similar, “Normal” is for using the pump to draw from the fresh tank to pressurize the plumbing with fresh water. “Tank” is likely to fill the tank - ours says “Tank Fill”.
It looks like the valve on the blue pipe may be used to drain the fresh water tank.
As far as the switch goes, if you turn the switch on, you’ll almost certainly hear the (fresh) water pump running, assuming it’s operating correctly (e.g., pump not seized or fuse blown, usually an in-line one). It’s ok to run it dry for brief periods to check it. It may also be a kill switch to override the inside pump switches.
I think you and the others above are spot-on with everything else.
Our selector valve is pretty difficult to turn. I keep meaning to pull it out, take it apart and lube it with some silicon plumber’s grease to see if it makes it better. It could be that some debris is jammed into yours.
|