Black Grey & Fresh water switches?? What do they do?

[Mookii]

In my 2013 DRV Tradition there are 3 black on off switches in the control panel. What are they used for?

[Notanlines]

Mookii, welcome to the forum. They are most likely switches to open your gate valves in the grey and black tanks. Post a picture of the panel for us.

[Mookii]

Not sure what they do

[Mookii]

My three handles on the outside don’t move when the switches are flipped. No noise no movement nothing. They are labeled black tank grey tank fresh tank

[travlingman]

I would guess turn on heat pads on the tanks.

[Mookii]

Didn’t think about that. I’ve searched they all the manuals that came with this rv new and can’t find anything telling me what they do.

[Notanlines]

Yes, they are for the heat pads under the tanks as TM suggested. Today's pads are automatic generally.

[Mookii]

Hey thanks a lot!