Drain Valve Locations; Fresh Water Tank Draining; Water Heater Draining; Water Heater Bypass Valve - Airstream International Serenity 23CB 2020 Owner's Manual

Maintenance

Drain Valve Locations

The 23 ft. Front Bed model has a fresh water tank
drain, a white petcock, under the trailer on the tank pan
in front of the roadside tires. It also has two water line
low-point drain valves located inside the pantry cabinet
behind the removable lower face panel.
The 23 ft. CB model has a fresh water tank drain,
a white petcock, on the tank pan under the trailer
between the roadside tires. It also has two low-point
hot and cold water line drain valves located under the
bed. They can be reached through a hole in the bed
top or through the exterior access door in the rear of
the trailer�
The 25 ft. Rear Bed model has two exterior water line
low-point drain valves, brass petcocks, extending from
the bottom of the exterior fresh water tank pan under
the trailer on the curbside between the tires.
The 25 and 27 ft. Front Bed, and 28 ft. Rear Bed
models have two exterior water line low-point drain
valves, brass petcocks, extending from the bottom of
the exterior fresh water tank pan. A separate white
plastic petcock, located on the same pan, is to drain
the water tank�
The 30 ft Rear Bed model has two low point drain
valves accessed by removing the rear dinette seat
cushion and reaching through the hole cut in the
seat bottom. It has the fresh water tank drain, a white
petcock, on the exterior tank pan under the trailer.

Fresh Water Tank Draining

Pumping the water out with the self-contained water
pump can empty the fresh water tank. Simply turn on
the pump switch and open a couple of faucets until the
water will no longer drain out, or use the petcock-type
drain valve located on the freshwater tank pan. Be sure
to watch closely and turn the pump off when the tank
runs dry. Pump damage can occur if the pump runs dry
for more than a few minutes.

Water Heater Draining

All models have a drain plug or petcock on the water
heater. Access is from the exterior. The plug or valve is
usually located in the lower-left corner, viewed as you
face the exterior of the water heater.
8-12

Water Heater Bypass Valve

1� Water Heater
2� Bypass Valve
If valve is in-line with water line, turn bypass valve
clockwise to close.
Water Heater Bypass Valve Locations
23 ft. Corner Bed - is under the bed and accessed
through a hole cut in the bed top or through the rear
exterior access door.
23 ft. Front Bed - is inside the removable bedroom
wardrobe cabinet lower face panel. The panel is held
on by two pressure catches and can be removed by
pulling the panel straight out.
25 ft. Rear Bed- Queen model is behind the removable
bedroom wardrobe cabinet lower face panel.
Twin Bed - through the lower panel at the foot of the
curbside bed. There is a panel removable by taking out
4 Phillips head screws.
25 ft. Front Bed - is through the curbside front exterior
access door.
27 ft. Front Bed - under bathroom lavatory. Open the
lavatory cabinet door to access a drop-down door.
Open the drop-down door to access the valves on the
water heater�
28 ft. - under the front lounge on the roadside. An
access hole is provided in the lounge top.
30 ft - is accessed through a hole cut in the rear dinette
seat.
2020 International