How do I know if my water heater needs to be replaced?

There are several signs that may indicate it's time to replace your water heater. If you notice rusty or discolored water coming from your faucets, this could be a sign of corrosion inside the tank. Additionally, if you hear rumbling or popping noises coming from the tank, this could be a sign of sediment buildup. Other signs of a failing water heater include frequent leaks, inadequate hot water, and a unit over 10-15 years old. If you experience any of these issues, it's best to consult a plumber to determine if a replacement is necessary.