Add more coolant as it drops below the bottom of the water neck or “full” mark on the expansion tank. Leave about a half inch ...

But not every water heater is the same. They vary in fuel needs, tank type, and whether the system requires an expansion tank. So what is a water heater expansion tank? It's a smaller tank that ...

Most vehicles now employ an expansion tank that allows the coolant to expand, and exit, the cooling circuit when hot, and to return when the car is turned off and the engine cools. The cooling ...