Which is the better option when replacing an expansion tank? Another newer model expansion tank OR the SharkBite Thermal Expansion Relief Valve option?
Shark bite thermal expansion valve . I think is the better option of the two
The other factor is that it allows for expansion which is good
Sharkbite is a quicky fix you want a better long term fix get another expansion tank of better quality,... "Expansion tanks are required by code in all new water heater installations in closed systems. A closed water system uses check valves, backflow prevention devices, pressure-reducing valves, or other devices on the supply line to prevent water from being sucked back into the municipal water supply."
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