Cayman 2006 Water Systems — Section 6 • 153
WATER SYSTEMS
Troubleshooting
Water system problems are generally caused by improper use or lack of attention. Improper winterizing, poor
maintenance, road vibration and campsite water pressure variations are common culprits of water system failure.
Check all plumbing connections for leaks at least once a year. If the water pump runs when a faucet is
not open, check for a water leak. Close drain valves. If the pump continues to run, take the motorhome to an
authorized dealer for service.
Disinfecting Fresh Water
Disinfecting the water system with household bleach (super chlorination) protects against bacteriological or
viral contamination from common water sources.
When to disinfect the fresh water system:
• If the motorhome is new.
• If the motorhome has been in storage.
• Every three months during use.
To Disinfect the Water System:
1. Remove water fi lter in galley and install diverter hose.
2. Drain the fresh water tank. Close drain when done.
3. Prepare a disinfecting solution: Multiply tank capacity (in gallons) by 0.13. The result is the amount
(in ounces) of household bleach to pour into fresh water tank. This yields a 50 PPM (parts per million)
disinfecting solution in the water system that will act as a quick-kill dosage for harmful bacteria,
viruses and slime-forming organisms. Concentrations higher than 50 PPM may damage the water
lines and/or tanks.
4. Attach a 5′ to 10′ potable water hose to the fresh water fi ll connection.
5. Use a small funnel to pour the correct amount of disinfecting solution into the hose.
6. Hook one end of another potable water hose to the short hose and the other end to a water source.
7. Use the water pressure to push the disinfecting solution into the tank.
8. Top off tank with fresh water.
9. Turn on the water pump in the motorhome.
10. Open each faucet and run the water until you smell a distinct bleach odor.
11. Turn off all faucets and allow the system to stand for four hours.
12. Drain the fresh water tank of the mixed solution.
13. Fill the water tank with fresh water. Thoroughly fl ush hot and cold lines with fresh water. Repeat this
process until the chlorine bleach smell is no longer detectable in the water system.
14. Install a new water fi lter.
INFORMATION:
Household bleach is 5.25% Sodium Hypochlorite. Higher concentrations increase PPM Ratio.
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