SECTION 7
PLUMBING SYSTEMS
52
water flow from the kitchen faucet is too slow
for convenience, or at least once a year.
1. Drain the fresh water system.
2. Place a container beneath the water
cartridge filter to catch any spillage.
3. Unscrew the fittings at the top and bottom
of the water filter cartridge. Pull the water
filter cartridge down and out of the fittings.
Insert the new water filter cartridge and
tighten the fittings securely by hand. Dispose
of the used water cartridge filter.
DRAINING THE FRESH WATER SYSTEM
Permanent water tanks may be drained
through a valve located near the tank. A
Jayco RV with a demand pressure pump
system will have low-point drains attached to
the water lines (normally located near the
water tank). These low-point drains will
release water in the supply lines by opening
the valves and all faucets. The water heater
has its own drain plug. To drain the
permanent fresh water holding tank (if so
equipped) and supply lines:
Open all faucets, including the outside shower
faucet (if so equipped).
1. Open the “exterior fresh
tank drain” valve on the
permanent fresh water
holding tank (if so
equipped). This knob
turns 45° to open or
close.
2. Open the “low point
drains.” As their name
indicates, the valves
will be at the lowest
point of water lines. A
label may be placed
on the outside of the
RV to indicate where
the drains are located.
The drains will
typically need to be
opened from inside the
trailer. Once the label is found on the
outside of the trailer, go inside to find the
corresponding location of the drains.
3. Drain the sink by removing the drain cap.
4. Turn ON the water pump and allow it to
run as needed.
5. Relieve the water pressure using the
water heater P&T valve BEFORE
removing the water heater drain plug.
Otherwise, if there is any water pressure
present the water will spray out of the
opening when the drain plug is removed.
When you are finished draining the fresh
water system, reverse these steps and, if so
equipped, dump the grey water holding tanks
at an appropriate facility or according to local
public codes.
SANITIZING THE PLUMBING SYSTEM
Potable water systems require periodic
maintenance to deliver a consistent flow of
fresh water. For your personal safety, the
plumbing system should be sanitized when
your RV is new, at the beginning and end of
each season and when the water system
becomes contaminated (or approximately
every three months of use).
How to sanitize with a water pump (if so
equipped)
1. Level the RV and drain the fresh water
system.
2. Close the drain valves.
3. Prepare a chlorine solution using 1/4 cup
of household bleach (sodium hypochlorite
solution) to one gallon (3.785 liters) of
water in a container. Prepare one gallon of
solution for every 15 gallons of tank
Fig. 7.6
Exterior fresh
water drain
Fig. 7.7 Low
oint drains
Failure to sanitize the potable water
system could result in death or serious
illness.
Chlorine is poisonous. Always recap the
household bleach bottle and clean utensils
and containers after use.
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