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How to add leak sealer?

Wolverien2005Wolverien2005 Member Posts: 2
I know I have to replace it but moved into a house not even 6 months ago and boiler started leaking recenlt. So doing this as a temporary fix. I will buy a leak sealer from home depot. Where do I put it in? I looked around the web. Picture of my boiler

I have this boiler
The instruction says pour it through safely bulb .Any help is appreciated. Sorry for the noob question.


  • IronmanIronman Member Posts: 3,992
    I feel for ya, but what you're planning is bad idea.

    There's no such thing as a mechanic in a can.
    Bob Boan

    You can choose to do what you want, but you cannot choose the consequences.
  • Jamie HallJamie Hall Member Posts: 7,540
    Don't. Fix the leak or replace the boiler if that's what it takes. The sealer, if it works at all, may seal up the leak -- and get gunked up into a lot of other places which may or may not be repairable.

    Just don't do it.

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • Wolverien2005Wolverien2005 Member Posts: 2
    Okay thank you both for reply. I will think about it.
  • nicholas bonham-carternicholas bonham-carter Member Posts: 6,855
    Where is the leak? If it's in a return pipe, it will be repairable.
    The safety bulb is the pressure relief valve, (PRV).--NBC
  • HVACNUTHVACNUT Member Posts: 942
    Also, if you have a tankless coil, the boiler seal will adhere to the exchanger and you'll lose hot water.
    It's getting warm. You've got some time to research equipment and contractors.
  • SteamheadSteamhead Member Posts: 11,602
    Is this a steam or hot-water system?
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
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