Thanks Cletis. Nice to hear from you again.

Does it matter which one of the thermostatic switch hose connectors it goes to first? Not sure how this thermostat switch works? Looks kinda simple. Mine turns freely and seems to move in and out like one would think it should. Seems like the turn knob just moves a plug in and out of a valve? Is this right?

Rebuilding the thermo switch involves what? I guess there is a rubber grommet that is in there? If it is not working correctly does the thermo switch leak?

Much thanks for the info.