New to the DIY. We flushed our electric water heater and replaced both elements and thermostats. We are refilling the tank and are not supposed to turn the power back on until is refilled. My question is: Should we be able hear the tank refilling? Upon initially starting to refill, we turned on another hot water valve... it sputtered but then started to run at a normal pressure. My mom is concerned because she can't hear it refilling, should we be able to hear it? Is there a way to test to make sure it is full, so we don't damge the new element?