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Once the vehicle is winterized, no water can be put into the fresh water tank and CANNOT be hooked up to the city water supply.  Therefore, NO water is available in the rental unit.  The toilet can be used only if non-toxic RV specific antifreeze is used to manually rinse and flush.

Vehicles are always winterized between November 1st and March 31st
Depending on weather conditions, this period may be longer or shorter.

It is the renter’s responsibility to have the vehicle un-winterized while on a trip at his/her own expense should the weather conditions allow it.  The renter is also financially responsible for having the vehicle re-winterized before returning the RV.   

When water freezes it turns into ice and expands.  If you leave water in the pipes of the RV during winter and it freezes, you could be looking at costly repairs.  The renter will be fully financially responsible for any damages to the plumbing and water systems caused by freezing during their trip.  The damage could be greater than the security deposit, and the customer will be responsible for damages above and beyond the security deposit. 

Due to the fact that most RVs are not designed well for use in sub-freezing climates we STRONGLY recommend that the unit is kept winterized while in cold climates. Once the vehicle is winterized, no water can be put into the fresh water tank and CANNOT be hooked up to the city water supply. Therefore, NO water is available in the rental unit. The toilet can be used only if non-toxic RV antifreeze is used to manually rinse and flush.

AUTOMOBILE ANTIFREEZE IS NOT THE SAME AS RV ANTIFREEZE.

Just like your foundation-built house, RVs have a variety of sensitive systems that can be damaged by the impact of freezing cold temperatures, especially since the battery, pipes and tanks are above ground.  


EXAMPLE:

* If it is 30° outside and you are doing 55 mph, that means the wind chill is -7°.   
* If it is 0° outside and you are doing 55 mph, that means the wind chill is -55°. 

This can cause serious damage to the water system in the RV.

Source for wind chill factors