SeaLand 320 Series RV Toilet - Manual (Page 9)

9
Dometic Gravity-Flush Toilet Winterization and storage
9 Winterization and storage
When a Dometic toilet is stored for long periods of time or may be exposed to temperatures below
freezing, the toilet must be winterized or stored according to one of the following procedures.
Caution
This toilet is not intended for use when exposed to temperatures below freezing.
Caution
Never use automotive-type antifreeze (ethylene glycol) in freshwater systems.
Note
Use nontoxic antifreeze (propylene glycol) designated for potable water systems.
(See vehicle owner’s manual.)
Storage options
Non-toxic Antifreeze Winterization (recommended method)
1. Pour antifreeze in potable water tank according to instructions from antifreeze manufacturer.
2. Flush toilet several times until antifreeze has flowed completely through toilet. For toilets with
hand sprayer, the hand sprayer must be turned on to assure antifreeze is cycled through the
sprayer.
Drain Water from Toilet
1. Turn off water supply to toilet.
2. Remove water supply line from water valve.
3. Place a small container under water valve inlet to catch draining water.
4. Press flush pedal and allow water to completely drain from water valve and vacuum breaker.
5. Leave water line disconnected until threat of freezing temperature is past.
Note
Never leave vehicle or premises unoccupied for extended periods of time with municipal
water supply or onboard water pump turned on when there is a possibility of freezing
temperature.