newbury
Super Star Member
- Joined
- Jan 8, 2009
- Messages
- 13,627
- Location
- From Vt, in Va, retiring to MS
- Tractor
- Kubota's - B7610, M4700
I've had 3 water heaters installed since about 2010 by registered plumbers. Two in Virginia, one in Mississippi. There was no mention of a need for a thermal expansion tank. Then yesterday my son tells me it's code in Virginia. Reading up on thermal expansion tanks it seems they need to be checked annually and are often a point of failure due to rust.
A quick attempt at online research indicate that one of the reasons to have a thermal expansion tank is to prevent the temperature and pressure relief valves from failing.
For the last 50+ years I had thought that if the temperature and pressure relief valves started routinely leaking it was time to replace the water heater.
So my question is how important is this if you have "soft water"?
A quick attempt at online research indicate that one of the reasons to have a thermal expansion tank is to prevent the temperature and pressure relief valves from failing.
For the last 50+ years I had thought that if the temperature and pressure relief valves started routinely leaking it was time to replace the water heater.
So my question is how important is this if you have "soft water"?