Water heaters could be a time bomb, if you do not check your water heater frequently; this could be a headache for you. Water Heater leaks from the drain valve or relief valve. If you don’t replace the valve on time this could be a problem and if a leak is coming from the tank, you’ve got serious trouble. The tank is lined with a thin coat of glass. Eventually, that glass begins to crack, the steel begins to rust away and a puddle appears. Left alone, the tank will rupture, causing an instant flood. It may take months for a leak to become a flood, or it may take days. But it will happen. Don’t gamble. Replace that leaking time bomb now.