try this site

https://www.thespruce.com/water-heater-expansion-tank-information-2719063#:~:text=A%20water%20heater%20expansion%20tank%20is%20a%20safety%20device%20(sometimes,happens%20when%20water%20is%20heated.

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• Thanks -Austin8- ♀ (0 bytes) () 08/05/2023 postreply 15:53:00

• Thanks -Austin8- ♀ (0 bytes) () 08/05/2023 postreply 15:53:00