Drain Systems; Things Not To Put Into Toilet Or Drains; Winter Traveling; Heated Tanks - Airstream 2017 Interstate Owner's Manual

General Information
Drain System (Lounge Models)
3
1� Lavatory Drain
2� Black Water Tank (Toilet)
3� Galley Drain
4� Gray Water Tank
Drain System (Grand Tour Models)
2
1� Lavatory Drain
2� Black Water Tank (Toilet)
3� Galley Drain
4� Gray Water Tank
3-10
1
2
4
3
1
4

Things Not to Put into Toilet or Drains

• Facial tissues (they do not dissolve like toilet paper)�
• Automotive antifreeze, ammonia, alcohols, or
acetone�
• Table scraps or other solids that may clog the drains�

Winter Traveling

Traveling in sub-freezing temperatures will require
certain precautions to protect the plumbing system
and your personal belongings from being damaged by
freezing�

Heated Tanks

The Interstate Touring Coach has 12-volt heat pads
installed with the fresh and gray water tanks� The tank
pads are controlled by a lighted switch located on the
forward shower wall just inside the sliding door or on
the side of the galley as you enter the touring coach
depending on the model� RV antifreeze may be used
to protect the gray and black tanks� When the outside
temperature is near freezing, simply switch "ON" the
holding tank heaters� Built-in sensors will activate the
heat pads when the contents of the tank drops to 44°F�
Once the liquid is heated and rises to 64°F the heat
pads will automatically deactivate� Switch the power
"OFF" when the ambient outside temperature remains
above freezing or the tanks are empty�
NOTE
The black tank is installed above the floor where
heat from the furnace will keep it from freezing.
NOTE
Drain and winterize all models if the water systems
are not being used during winter traveling. Refer
to Section 9 - Maintenance in this manual for
winterizing instructions.
2017 Interstate