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192
CARE AND MAINTENANCE
1. Drain the fresh water tank by turning the tank drain
valve to the open position.
2. Drain the water heater (if equipped) by removing the
drain plug.
How To Sanitize The System
Once the system is flushed, Newmar recommends
replacing the water filters. Do not re-use the contaminated
filters, as this will greatly reduce the e
ff
ectiveness of the
sanitization process.
Do not attempt to drain the water heater when the
water is hot or the system is pressurized, as scalding
may occur.
NOTICE
!
For any coaches not equipped with a whole house
filter, skip these steps. Instead, use a funnel to pour
bleach into the hose prior to hooking the coach up to
a potable water supply.
NOTICE
!
Not all filters have a ‘bypass,’ so it may be necessary
to install the canister without the filter.
NOTICE
!
Top o
ff
the water tank so that the sides and top of the
tank are sanitized as well.
NOTICE
!
If the bleach smell is still noticeable, repeat steps 21-
22 to flush the system again.
NOTICE
!
Sanitizing through the winterization process will not
sanitize the fresh tank or all of the water lines.
NOTICE
!
IMPORTANT
!
If algae or slime is detected in the fresh water system,
it may be necessary to repeat the entire process until
the system is flushed clean.
While the tank is draining, remove all of the water filters,
including the refrigerator and drinking water filters
(standard or UV), if your coach is equipped, and install a
bypass.
3. Remove the main (whole house) filter housing.
4. Remove the filter, and pour household bleach (1/4 cup
per 15 gallons, as determined by your tank capacity)
into the filter housing. For example: 1.75 cups of
bleach for coaches equipped with a 105 gallon
fresh water tank or 1.25 cups of bleach for coaches
equipped with a 75 gallon fresh water tank. This will
approximately be a 50 ppm (parts per million) bleach
solution.
5. Reinstall the housing and the water heater drain plug
after it has drained completely.
6. Hook up the water hose from the hose reel (if
equipped), or hook up a drinking water-safe portable
hose to a potable water source.
7. Turn the valve to ‘tank fill’ or ‘manual tank fill.’
8. Turn on the potable water source, and completely
fill the water tank. (This will flush the bleach/water
solution from the filter housing [Step 4] into the water
tanks.)
9. Turn o
ff
the tank fill valve (on non-auto fill coaches).
10. Turn on the water pump.
11. Run water out of one faucet on both hot and cold
settings until a strong bleach smell becomes evident.
12. Repeat this for all faucets, as well as the refrigerator,
dishwasher, washing machine, toilets, low point
drains, etc.
13. Turn on the refrigerator and the ice maker. Depending
on your refrigerator model, the ice maker may have
a flip lever or an ON/OFF switch. Let the ice maker
run until the bleach/water solution is detected. This
may take a few cycles. One cycle consists of the ice
maker filling the trays with water, freezing the water,
and then dumping the ice into the ice bin. This cycling
process will occur automatically if the refrigerator, the
ice maker, and the water pump are all turned on.
14. Disconnect the water hose, and dump out some
water.
15. Pour one ounce (1 oz.) of bleach into the water hose,
and reconnect it to the potable water supply.
16. Turn on the water for a brief moment to flush the
bleach through the water hose, allowing it to mix in
the hose reel or the portable hose used for potable
water.
17. Turn o
ff
the water supply, and disconnect the water
hose.
18. Cap the end of the hose.
19. Let the bleach water sit in the system for a minimum
of four hours. However, for best results, allow the
solution to sit overnight or up to 12 hours.
20. Drain the fresh tank using the drain valve.
21. Fill the fresh tank with clean potable water.
22. Run water out of each faucet on both hot and cold
settings until the bleach smell is no longer evident.
Summary of Contents for London Aire 2021
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