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Internet #

100147992

Model #

30115

Store SKU #

654921

32 oz. Boiler Liquid

(92)Questions & Answers (32)
$871
  • Boiler water coils, controls, valves, and vents remain clog-free
  • Conceals and repairs cracks in your water system
  • Odor-free Seal expands and contracts as per temperature
  • View More Details
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Product Details

Hercules Boiler Liquid seals and repairs cracks and leaks in steam and hot water systems. Prevents steam boiler surging and will not clog or coat submerged hot water heating coils, controls, vents or valves. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions.
  • Makes a strong, lasting repair on difficult leaks in steam boilers
  • Prevents steam boiler surging
  • Larger 1 gal size
  • Will not clog or coat submerged hot water heating coils, controls, vents or valves
  • Resists high pressure and is not affected by boiler cleaners
  • Will not cause priming or foaming
  • Contains no petroleum distillates and is safe to use in boilers and systems with plastic or rubber components
  • Return Policy
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Specifications

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Questions & Answers

32Questions
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Q:How long does this need to circulate to seal a leak?
by|Feb 6, 2023
1 Answer
Answer This Question

A:  Times will vary but we recommend still circulating the system with heat for 24-48 hours after all leaks have stopped.

by|Feb 8, 2023
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    Q:I have a Wood master wood outdoor boiler with a 100 gal. tank. How much stop leak do I need
    by|Jan 3, 2023
    1 Answer
    Answer This Question

    A:  1 part boiler liquid to 100-200 parts system capacity. 1 to 2 gallons recommended

    by|Jan 8, 2023
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      Q:can this product be used on a boiler that heats a pool?
      by|Dec 27, 2022
      1 Answer
      Answer This Question

      A:  Not recommended for boilers that circulate pool water through them. Contact technical@oatey.com for specific details on these applications.

      by|Jan 6, 2023
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        Q:What product can you use if your apartment or house has rough water, that is heated by the furnace to run soother.
        by|Oct 5, 2022
        1 Answer
        Answer This Question

        A:  A Boiler and System heating cleaner can be used.

        by|Oct 12, 2022
          Showing 1-4 of 32
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          Customer Reviews

          4.6 out of 5
          (92)
          • 4.6
            out of 92 reviews
          • 95% recommend this product
          Filter by:
          Showing 1-10 of 92 reviews
          Mar 8, 2021
          Worked as advertised!
          Checked my boiler to find a large puddle of water in the basement around it. Found it to be leaking on one side from under the outer covering. In taking the cover off found to have a leak made up of multiple pin leaks see pictures below. Did not want to be at the mercy of a "plumber" on a Sunday. Did my research as to my options, read the posted reviews and gave it a shot. Drained out about 5 gallons of water, added two bottles as per the instructions. Topped off the boiler water and fired it up. The spurting leak was now a fast drip that slowed as the minutes went by and the temperature and pressure increased, coming to a total stop within a half an hour. Now that I am safe from not freezing in my home, I can plan the replacement of my 20 year old boiler on "my terms"!
          by
            • Recommended
            3 found this review helpful
            May 24, 2023
            It slowed the boiler leak considerably but didn’t stop it...
            It slowed the boiler leak considerably but didn’t stop it completely.
            by
            • Verified Purchase
            May 3, 2023
            I bought 2 quart of the boiler liquid, poured it...
            I bought 2 quart of the boiler liquid, poured it into the warm boiler ran it for several hours and it sealed the leak. So far so good
            by
            • Verified Purchase
            Mar 31, 2023
            by
            • Verified Purchase
            Jan 25, 2023
            by
            • Verified Purchase
            Jan 25, 2023
            82 YEAR OLD SECTIONAL BOILER
            PLUGS UP LEAKING SEAMS IN 82 YEAR OLD SECTIONAL BOILER ( KOHLER MODEL #22)
            by
            • Verified Purchase
            Dec 28, 2022
            Used two bottles on a steam side leak in my...
            Used two bottles on a steam side leak in my 120k btu boiler. Definitely give this a try before replacing any boiler with a small leak.
            by
            • Verified Purchase
            Oct 5, 2022
            by
            • Verified Purchase
            Apr 27, 2022
            It was a real challenge to get this stuff into...
            It was a real challenge to get this stuff into my boiler but once I did the results were more than I'd hoped for. Turn the boiler water black but after a couple of weeks I decided to flush the boiler several times and it is now clear again and best of all NO LEAK!
            by
            • Verified Purchase
            1 found this review helpful
            Apr 19, 2022
            Only provided very short term fix. First try lasted 2...
            Only provided very short term fix. First try lasted 2 days. Second try lasted 8 days. Followed instructions exactly, particularly the 2nd time. It appears that after applying, as long as the boiler remained very hot, the leak was stopped but if boiler cools down (e. g. from less calling for heat from the thermostat), even if it is well after the 48 hours after applying the liquid specified in the instructions, the leak reappears, with no reduction in leaking compared to before applying the liquid.
            by
            • Verified Purchase
            Showing 1-10 of 92 reviews

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