6.1.4 Maintenance fresh water system

Component Maintenance Notes and precautions
Fresh water tanks Cleaning and checks At least every month, drain the fresh water tanks completely and rinse them a couple of times with clean fresh water for change completely the water stowed in the storing tanks and at the same time to wash them too.
Periodically pour a specific disinfectant, in the quantity recommended by the Builder, into the tanks, through the intake filler, in order to prevent the formation of bacteria in the system.
Electric water heater Cleaning and checks
MAINTENANCE

At least once a month check the operation of the water heater.
At least once a month check the operation of the relief valve.
At least once a year carry out the thermostat calibration, and if necessary, have it calibrated again.
At least every two years descale the resistor.

CAUTION

If warm water is not available, because of the fresh water circuit discharge, switch off the water heater to prevent damaging it resistor.
Fresh water system Checks In case of need or of maintenance, by acting on the valves installed on the distribution manifolds, it is possible to cut out parts of the system or single utilities, without involving the operation of the general system.
Check if along the hydraulic circuit, where possible, are present leaks due to the damage of piping.
WARNING

The high temperature can cause the softening of the pipes and the following slackening of the fittings. Always check the pipes tightening, especially those located near heat sources.

WARNING

During the winter, if you do not use the yacht, it is advisable to drain all the circuits where there is fresh water to avoid cracks due to frost.
Surge tank pump Cleaning and checks The maintenance of the pump should be serviced by qualified personnel only, after having been disconnected from the power mains.
No routine maintenance is required so long as the following precautions are taken:
  • In case of freezing risk, it is necessary to empty the pump body; then refill the pump before operating it but make sure the ambient temperature is higher than the water freezing temperature.
  • Make sure the pump never works dry.
  • If the pump remains unused for a long time, it is better to empty the body and clean it.
  • Periodically check the efficiency of valves and strainers.
  • To Direct Current motors the brushes must be periodically checked for consumption and spring pressure.

Protect electric components of the pump with proper products.

NOTE

For further information on use and maintenance, please refer to the manufacturer’s manual.

WARNING

During the winter, if you do not use the yacht, it is advisable to drain all the circuits where there is fresh water to avoid cracks due to frost.

WARNING

The surge tank pump is self-priming but it needs though, in order to operate, to have its body filled with liquid.
For a correct use, we recommend priming first or after a long period of idling, to fill the pump body with liquid, to check the pressure inside the tank (it must have the same pressure priming the electric pump) and to verify the clockwise rotation of the pump (seen from the engine side).

WARNING

If the control panel shows the pump operating led remains always lit, but the connected utilities are not in use, check for leaks.

WARNING

When anomalous situations occur, such as lack of water or pipes clogging, it indicates the presence of faults by means of the red light “Failure” and stops the pump.
By pressing red button (reset) the system restart.

DANGER

Before carrying out maintenance on the fresh water pump, avoid its accidental priming.