Doing yearly maintenance on your hot water tank is recommended by most manufacturers. Checking your temperature and pressure relief valve is one of the items that should be checked to confirm your safety device isn’t seizing. You should also be draining your hot water heater yearly to get any sediment that has accumulated at the bottom of your tank out. Because the sediment acts as an insulation barrier between the combustion chamber and the water, draining the sediment will actually increase the efficiency of your tank. We also recommend to change any plastic shut off valves to metal ones, as they tend to leak and cause emergency issues.