Water hammering, in most cases, can be solved by installing a pressure-reducing value.
EXPANSION TANK
Pressure-redcing value can cause problems with a hot water heater. The installation of an expansion tank will help reduce this problem.
How expansion tank works:
- When the water heater turns on, the water within your piping system begins to expand.
- This water enters the expansion tank and is released once hot water is drawn.
- The expansion tank relieves pressure that would otherwise cause the water heater's pressure relief valve to discharge.