Regal 3300 Owner's Manual page 128

CHAPTER 4
2. Find the fresh water pump breaker located on the 12 volt head panel
and pull the switch out to engage it. You will hear the pressurized
water pump fill the entire system with fresh water. When full the pump
pressure switch will stop the pressure pump.
3. Open the faucet to allow any air to escape. Close the faucet when
there is a steady stream of water without air. You will hear the fresh
water pressure switch shut off indicating the system is full.
4. After these initial procedures, "top" the system off with fresh
water.
5. Check for system leaks as evidenced by the pressure water pump
recycling even though no water is being used from the components.
6. It is a good idea to turn "off " the fresh water pump switch after
each use and especially during extended times of non-use.
7. Clean the pressure water filter periodically by disassembling the
filter element and rinsing in fresh water. Ensure the pump switch is
off. Replace and check for leaks. For parts, contact an authorized Regal
dealer.
Do not activate the freshwater system with the water tank empty.
Activating the system with the water tank empty could cause
damage to the pressure pump.
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