Thermal Expansion tanks For Hydronic Heating Systems - InfoBarrel

Thermal Expansion tanks For Hydronic Heating Systems - InfoBarrel
Thermal expansion tanks are a necessity within a hot water heating system, when they go bad the pumps can air lock. Or at the least your system will sound like a babbling brook or stream. This is an indicator that the expansion tank has burst it's diaphragm and released air into an otherwise sealed system.
Replacing the tank will be required to put things right and this article will walk you through that process.