Jayco SENECA, Owner'S Manual

Page: 67 / 93

SECTION 7
PLUMBING SYSTEM
No commodity or product should be added to
the fresh water system to ensure freeze
protection other than RV antifreeze.
The motor home should be winterized at the
end of the camping season or when the motor
home will be exposed to temperatures that
will fall at or below 32°F (0°C). Repairs due to
freezing are not covered by warranty.
There are two methods of winterizing your
motor home based upon your model. Please
read, understand and follow all instructions
before beginning.
Air pressure (all models)
This method will utilize an air hose to blow
excess water from the water lines.
1. Make sure all holding tanks are empty and
drain valves OPEN.
2. Run the water pump until it is dry, this will
take approximately 15-20 seconds.
3. OPEN all faucets and drains, and the
toilet.
4. Using an air hose and adapter (customer
supplied), blow air through the city water
connection. Any remaining water will blow
out in five to ten minutes.
Pour one cup of non-toxic RV antifreeze into
all drain P-traps.
Water heater bypass (most models)
It may be easier to winterize the motor home
with another person to assist you.
1. Level the motor home and drain the fresh
water plumbing system.
2. Replace the water filter cartridge with the
clear plastic bypass hose.
3. Make sure the water heater 12-volt and
120-volt interior control switches are OFF.
4. Turn the water heater bypass valve to the
BYPASS position.
5. Move the valves to the “Sanitize/Winterize
Lines” position. The low point drains must
be closed for the antifreeze to siphon
through the lines.
6. Insert the garden hose into a container of
motor home antifreeze solution (this
quantity should be enough to winterize the
motor home); attach the other end to the
city water connection.
To assist the siphoning process, put the
container on a surface approximately two
feet above ground level.
7. Turn the water pump ON.
If the water pump fails to self-prime,
temporarily open the low point drains
(close the low point drains as soon as the
water pump primes [RV antifreeze will
begin draining out] and before continuing
to the next step).
8. Open the hot water line on all the faucets
(kitchen, lavatory, shower and outside
shower) until RV antifreeze begins to flow
continuously.
9. Close the faucet hot water lines and
repeat with the cold water lines on all the
faucets. Do not forget to run RV antifreeze
through the toilet.
Never apply air pressure to the water
system with any of the valves in the closed
position. Air pressure applied to a closed
valve, faucet or low point drain could
potentially damage the seals and cause
water leaks. If you have questions, consult
with your RV dealer.
When you are done adding RV antifreeze
10. Remove the garden hose from the
container of RV antifreeze.
11. To prevent staining, wipe the RV
antifreeze out of the sinks, shower (or tub)
and toilet using a soft, dry cloth.
To reduce the chance of contamination,
prevent the garden hose from coming into
contact with the ground. If needed, contact
your RV dealer for assistance.
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