We recommend checking your drain valve (Look up here if you do not know what it is) . This is usually located on the bottom part of your tank. There are times that this particular valve becomes loose over time due to constant pressure. This means that a leak can be a simple fix. You can simply use a wrench and tighten the valve. If this does not work, but you still notice that the leak is coming from the drain valve, you may have to replace it.
If you are replacing it. You will want to take the necessary precautions in replacing your drain valve. This includes shutting off the main gas or power supplies. This is critical as you do not want any spark to hurt you.
You will simply attach a garden hose to the drain valve so that the water will come out. After all the water has finally drained out, you will want to remove the hose and to keep the temperature open. Use a wrench to remove older drain valve and set it completely aside.
Wrap Teflon tape around the threads of the new valve so no leakage will occur in the future. Test and all should be good.
If you are dealing with excessive pressure build up in the tank then there is a great chance that your release valve is faulty and may have to be replaced. If you are going to replace the valve yourself, we do recommend going about the traditional procedures of safety and shutting off all electricity or gas related to the hot water heater.
Other factors that will contribute to this are the simple fact of having a strong flow of water causing a leak.
Sometimes the natural flow of water is simply too much for the water heater to handle. Make sure that the temperature of the heater isn’t set too high.
If it is set too high, then this will trip the valve. Last but not least, you will always want to review your owner’s manual for these specific situations as they will give you the best course of action.
The typical lifespan of a hot water heater is 15 to 20 years. However, corrosion can happen much sooner than this. Corrosion is so powerful that it can ultimately eat through the tank and cause a hole in the hot water heater tank.
If you sense that this is happening then you may need to replace your hot water tank as there is no way to actually fix or reverse corrosion. We do recommend that you check the sediment levels in your tank because this can lead to faster rate of corrosion.
In conclusion, these are the three most common forms of why there may be a leak in your hot water heater. There are exceptions, however. Just remember, that before you take any steps, it is always recommended that you turn off all the power supplies whether you have a gas or electric heater.