The water pump runs continuously but no water is available at the taps. The most likely problem is that there is no water in the water tank or no water is reaching the pump from the water tank. This causes the pump to run continuously trying to build up a suitable water pressure. The pump should always be turned of when this occurs as if the pump runs dry for any period of time it is likely to cause damage to itself.
Causes are as follows a - There is no water in the tank.
Probable time taken 12 - 15 minutes. Parts required - none. The water pump runs intermittently. The pump running intermittently, often only heard at night when the boat is quiet. This intermittent running implies that the water pressure is dropping in the system.