Furthermore, if your water pump continuously runs when not in use and you have confirmed that water is available to the pump you most likely have a pressure switch issue. Another Indicator that your water pump may need to be replaced is if it begins to leak.

Cavitation is a common problem that can occur in water pumps. This is caused by low pressure in the pump, which can create air bubbles that implode and cause damage to the impeller and other components.

If there is a loose fitting, cut in a line before the pump, or an issue with a gasket or valve in the pump, air can be pulled into the system. This will cause the system to leak pressure. A good first step to check for an air leak is to listen for it.

In many cases, a leaking water pump is the result of cracked or corroded RV parts, including the various fittings and hoses that connect to the pump. Check each of these fittings and hoses for signs of wear and tear, and if you notice anything that seems suspect, replace it right away.