Thor Forums

[SailingVehicle]

We are in the cold now and concerned about the grey and black water tanks freezing. I notice on the fluid monitor panel by the entry door there are 2 switches: one for the grey water tank heater and the other for the black water tank heater. They give me thought that there may be heaters in them. If there are, I cannot find information in the Owner's Manual. If there are, is there a minimum amount of fluid that should be in each tank before I turn the heaters on?

Thanks