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expansion tank colapse???

Dann Crist
Dann Crist Member Posts: 4
in THE MAIN WALL
has anyone ever experianced the colapse?? of the bladder of an expansion tank (extrol 30) to thwe point that it will not accept the expanded water??? Tank is totally empty
of water, pressure in the tank 15psi, rubber bladder tight against the connection end, will not move even under 30-40 psi from boiler side. I have seen this twice(on different systems) this year and cannot make any sense of it. Relacement of tank easily solves the discharge from relief valve. thanks

Comments

  • Gary Fereday
    Gary Fereday Member Posts: 427
    I'd guess

    That certin water conditions could cause the bladder to stick to the side of the tank and stop the "action". Water is a all inclusive name for a liquid that can be so different. Have you tried taking out the air valve insides and pressureing up the water side ? Careful here as air pressure could be very hazadrous. I wonder if sand could have gotten into a damaged bladder and caused the problem ? Sounds like Sawzall time and let us know "whaa hoppened ?"
    Bigugh
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