The pressure relief valve of ones Denver water heater has an essential task – ensuring the water heater tank does not explode. So with that in mind, we wish to see to it house owners know ways to best look after it. They will certainly leak when the valve breaks or when the water storage tank pressure gets higher then the relief point.
We suggest that a minimum of two times a year, property owners test to make sure the pressure relief valve, or T&P valve as we will call it, is working appropriately. All one needs to do is raise the handle for a couple of seconds and release it. It must snap back to its initial position. When it is raised, one could hear the noise of pressure being released , just like the noise of air coming out of a tire pump when being disconnected. Likewise, a little water may come out too. Both are regular. If the valve has not been tested for a number of years, it may stick at first too.
However, if the handle does not snap back, or if it continues to leak a little water, that is not typical. If it still leakages some, raise the handle a couple of more times to see if it will re-seat itself. You may want to wait a day or so it see if it re-seats itself before presuming it needs to be replaced.
We would prefer to manage any T&P valve replacements for you, so though hot water heaters are normally relatively upkeep free, there are some safety preventative measures one ought to bear in mind. With that here is an overview of a pressure relief valve replacement.
1. The gas to the water heater has to be turned off, or the breaker for an electrical water heater.
2. The cold water cut-off valve has to be closed next.
3. The valve below the T&P valve needs to be opened to drain a little water in order to relieve some of the pressure in the storage tank.
4. The overflow pipe of the T&P valve needs to be removed. It might need to be cut off if it is soldered or firmly glued.
5. The pressure relief valve needs to be unscrewed with a pipe wrench.
6. Wrap the brand-new T&P valve with Teflon tape and screw it back in place. Make sure the overflow pipe opening is positioned away from the storage tank.
7. Reattach the drain pipe, also utilizing new Teflon tape.
8. Turn the water back on, and examine your work for any leaks.
The following video provides a summary of this process: