Airstream NTERSTATE Owner's Manual page 75

PLUMBING
Drain Systems Cleaning
There are many deodorizers on the market in tablet, liquid, and powder form. These
not only combat odor, but also stimulate the bacteria that works to dissolve the solids
in your tank. Picking a deodorizer with lubricating qualities will help ease the slide
valve operation.
The only cleaning agents that can be used without causing harm to the system are
household ammonia and tri-sodium phosphate in small quantities. Do not use any
product that contains any portion of petroleum distillates. This attacks the rubber seals
of your toilet and dump valve. Also, do not use any dish detergent or abrasive cleaners.
All products should be marked approved for ABS drainage systems.
When winterizing the drains, use only recreational vehicle plumbing type antifreeze.
These are sold through your dealer.
G
G - 15