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Expansion tank

  • 03-09-2008 8:19pm
    Registered Users Posts: 199 ✭✭

    I have a leak in my heating overflow/expansion tank, it hold about 4 gallons of water. Noticed a small weep on a conection and found i could put my finger through it!(rust), anyway is it ok to replace it with a plastic one from a hardware store, or does it have to be metal?

    Thanks in advance for any input



  • Registered Users Posts: 6,931 ✭✭✭10-10-20

    What ever is cheaper!

  • Registered Users Posts: 199 ✭✭caspermccormack


  • Closed Accounts Posts: 2,290 ✭✭✭ircoha

    what is the other tank?

  • Registered Users Posts: 199 ✭✭caspermccormack

    just a metal one

  • Registered Users Posts: 1,257 ✭✭✭Pete67

    Consider replacing them both, the other one holds a lot more water and if it lets go you will be replacing a few ceilings.........

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  • Registered Users Posts: 199 ✭✭caspermccormack

    Sorry the big water tank in the attic is plastic, the heating one is metal or rusty metal, had a fair idea to replace it with a plastic one , just asked incase there was a reason for it being metal.