Tiffin Motorhomes 2014 Allegro Bus Owner'S Manual Download

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Turn the city water supply “on” for a few seconds to clear the line. Once the hose has been
flushed, turn the supply “off.” Connect the other end of the hose to the city-water
connections on the motor home.

Once the city water fill valve is opened, water is supplied to the freshwater system including
the hot water heater, faucets, and toilet. Turn “on” the water supply and open all of the
faucets to clear any trapped air within the plumbing lines within the motor home.

Once any air pockets have purged from the water lines and water flows freely, close all of the
faucets. The city water supply is pressurized (usually 60-80 psig); therefore, the water pump is
not needed when the water system of the motor home is connected to the city water system.

To disconnect the motor home from the city water supply, close the valve and remove the
hose from the city water supply. Disconnect the hose from the city water connection,
drain it, and store the hose in the water compartment of the motor home.

Figure 11-7.

Power Hose Reel

TIFFIN MOTORHOMES

–ALLEGRO BUS®

Chapter 11

PLUMBING & BATH FIXTURES

11-4

Filling the Freshwater Tank

The freshwater tank is normally filled from the city water connection. The city-water valve (Figure11-8) located in the
sanitation compartment near the water connection determines whether the city water is
going through the motor-home water system or into the freshwater tank. Since there is not
an automatic shut-off when filling the freshwater tank, check the level from the monitor
panel while filling the freshwater tank on the motor home.

The excess water will be vented from an overflow in the vent pipe onto the ground when the
capacity of that tank has been reached. This pipe is installed in the freshwater tank to
prevent possible tank rupture from inadvertent overfilling.

All of the water should be drained from the freshwater system when the motor home is not

in use for an extended period of time.

Sanitizing

To assure complete disinfecting of the freshwater system, it is recommended that the following procedure be
performed on a new system, on one that has not been used for a length of time, or one that may have become
contaminated. This procedure is also recommended before long periods of storage, such as during the winter months:

1. Drain the freshwater tank by opening one valve. There is one valve for each water tank. All of the faucets should

be in the closed or “off” position.

2. Prepare a chlorine solution using one gallon of water and one-half cup of chlorine bleach (5% sodium-

hypochlorite solution). Prepare enough of the chlorine solution to administer one gallon of solution for every

15 gallons of tank capacity. For sanitizing this tank, prepare 4ó gallons of the chlorine solution. This mixture puts

a 50 ppm (parts per million) residual chlorine concentration in the water system that will act as a quick-kill dosage

for harmful bacteria, viruses, and slime-forming organisms. Concentrations greater than 50 ppm may damage

the water lines and/or the tank.

Figure 11-8.

Water Fill Valve