I was in the bay that houses my water pump and saw the fresh water drain valve. Between the valve and the tank there is a PVC
tee that's in the line right after the tank. The third leg of the tee has 2 wires attached to it that are coming from within the " belly of the beast."
Can somebody please tell me what the tee fitting is for?
Fresh water level sensor?
If what's shown in the left side of this photo, that's what it is

Black and grey sensors will be behind the utility bay wall.
That's it. Is it a pressure sensor?
Yes - you have 3. Fresh, Black and Gray - they feed the Javilina screen. :D
As Michelle says the Black and Gray are behind acess panels. :D
Thanks everyone.