SECTION 7 –
PLUMBING
7-2
3. An in-line 60 psi pressure regulator is
recommended to protect the trailer’s water
system.
4. Open the city water supply valve.
5. Open the faucets in the trailer and let the water
run a few minutes to clear the lines.
NOTE: As long as the water system is hooked up
to a city water supply, the onboard
storage tank and the 12-volt pump are
isolated from the system. Do not turn the
pump to “ON” until the city water supply
is disconnected in order to avoid damage
to the pump.
FRESHWATER SYSTEM
SANITIZING
Sanitize the freshwater tank and piping at least
once a year or whenever the trailer sits for a
prolonged period. This will discourage the
growth of bacteria and other organisms that can
contaminate the water supply. Use a chlorine/
freshwater rinse as follows:
1. Prepare a solution of ¼ cup liquid chlorine
bleach (5% sodium hypochlorite) to one
gallon of water for each 15 gallons of tank
capacity.
2. Close drain valves and faucets, pour chlorine
solutions into the freshwater gravity tank fill
(if equipped), and complete filling with fresh
water.
3. Turn water pump switch “ON”. (Be sure you
have 12-volt DC power.) Open all faucets
individually until water flows steadily, then
turn off. This will purge any air from the lines.
4. Fill water tank with fresh water and wait three
hours.
5. Drain the entire system by opening all
freshwater tank valves, faucets, and plumbing
line drain valves.
6. Flush the system with drinking quality water.
Let the fresh water flow through the system
for several minutes to flush out the chlorine
solution.
7. Stop the flow of water, close the tank valve,
the faucets, and drain valves.
8. Fill with fresh water and the system is ready to
use.
DRAINING THE WATER
SYSTEM
If the trailer is to be stored in temperatures
below freezing, the freshwater system and the
wastewater system should be drained as follows:
1. Empty the freshwater storage tank by opening
the drain valve located on the tank.
2. Turn the pump to “ON” and open cold water
faucets.
3. Open the drain petcocks on the hot and cold
water pipes located in various locations
depending on the model.
4. Open the drain valve on the bottom of the
water heater (7/8” wrench required) as well as
the water heater safety valve.
5. Open all the faucets and depress the flush
pedal on the toilet to promote drainage.
6. Drain the holding tanks using the outlined
procedures in the following section.
WARNING
DO NOT use a contaminated system
until it has been cleaned and
thoroughly flushed (4-6 flushes) with
water. Keep children away from unit
until the water is safe to drink.
CAUTION
DO NOT run the water pump without
water in the system. Always keep the
pump switch “OFF” when the system
is empty or when connected to city
water. Running the water pump dry
can damage it and void the warranty.