If the valve was removed recently it s possible it is now failing to seal properly.
Water heater expansion tank leaking.
Even in the best boiler system your expansion tank may begin to experience some leaks.
As discussed above when sediment builds up in the bottom of a water tank for years and years it will eventually corrode through the bottom of the tank and begin to leak.
If you notice water leaking from the top of your water heater it s likely coming from one of 4 places.
You will need the following tools to fix and repair your expansion tank by yourself at home pipe wrench teflon tape soapy water blow dryer a towel plumber s putty and a garden hose.
The changes in pressure due to overflow from the boiler during water expansion as well as having moving parts makes for the potential for degradation of the system.
This is a simple and straightforward fix.
This is a secondary safety device that absorbs excess hot water that occurs during the heating process.
The expansion tank is leaking many water heaters have an expansion tank installed on or over the top of them.
The expansion tank is a pressurized system.
However if the leak is not at the automatic air bleed vent shown in our photo above but is at the air valve mounted on an internal bladder type heating boiler expansion tank then we have a different problem.
The bottom of the water tank.
When a closed system exists on the water distribution piping in a home an expansion tank needs to be installed somewhere on the plumbing system.
If the water heater is heating the water too much the excessive pressure may be causing the t p valve o leak.
The changes in pressure inside the expansion tank can bring about the degradation of the water heating system and cause leaks.
This tank can leak from any of the following 3 areas.
Step 1 investigate to find source of leak.
Our page top photo shows an internal bladder type expansion compression tank used on a hot water heating boiler.
And if your water heater is more.
Tightening the valve or.
The leaking t p valve may indicate the overall water pressure in.