Model # 30115

Internet #100147992

Store SKU #654921

null 1 qt. Boiler Liquid
0032628301153

1 qt. Boiler Liquid

$8.54 /each

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Product Overview

HERCULES 1 qt. Boiler Liquid is used to seal and repair cracks and leaks that appear in steam and hot water systems. The odor-free formula creates a tough seal that expands and contracts with heat. NSF registered and USDA authorized.

  • Seals and repairs cracks and leaks in steam and hot water systems
  • Compatible with propylene glycol-based antifreezes, chemical additives and boiler treatment compounds
  • Will not clog hot water coils, controls, valves or vents
  • Resists high pressure and is not affected by boiler cleaners

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

My boiler is leaking. I purchased Hercules boiler liquids. Does the boiler have to be shut off when you pour it in.

Asked by: Roe
Yes but should not be cold.
Answered by: ATTALS
Date published: 2017-03-06

I do not see any opening in safety bulb?

Do I have to take it off to put this?
Asked by: John
You would introduce this product through a safety valve opening. I would check with your Boiler manufacturer to locate that. We wouldn't know about your specific Boiler.
Answered by: Oatey
Date published: 2017-04-21

Where do u put it in?

Asked by: Miikeyd
Through the safety valve opening.
Answered by: Oatey
Date published: 2017-04-20

long term or short term

how long will sealer last before my boiler leaks again
Asked by: irish
no issues 1 year later
Answered by: NorthEastOhio
Date published: 2015-12-05
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Customer Reviews

1 qt. Boiler Liquid is rated 4.5 out of 5 by 22.
Rated 5 out of 5 by from I had a leaky boiler, and I was told it... I had a leaky boiler, and I was told it needed to be replaced. I found this product by chance in home depot. It sealed the boiler in 5 hours, and in less than 12 hours the leak was fixed. I could not be happier! In all my research, I have never seen this product mentioned. It is amazing!
Date published: 2017-01-25
Rated 5 out of 5 by from Greatest thing around Had leak in boiler water leaking out called plumber he walk in door took look said I need new boiler cost $7200 service call $135 he was in the house 5 minutes did nothing. I said let me try this I have nothing to lose. Poured bottle in and no more leak!!!! WOW CANT BELIEVE IT.
Date published: 2017-01-19
Rated 1 out of 5 by from Made boiler surge! My boiler was working fine except for a small drip from one pipe. I read all the great reviews and bought yhis followed the directions, stareted boiler and it surged so bad the lwco kicked in. I dont understand how others are seeing good results???
Date published: 2017-01-02
Rated 5 out of 5 by from Had a steady thin flow of water dripping from boiler rear and as a result my auto water feed was ... Had a steady thin flow of water dripping from boiler rear and as a result my auto water feed was constantly running. I followed instruction and within minutes, water stopped flowing and still after three days all is well. Great product.
Date published: 2017-03-06
Rated 1 out of 5 by from Used two bottles trying to seal 10 year Crown 103... Used two bottles trying to seal 10 year Crown 103 boiler heat exchanger leak. Not working at all.
Date published: 2017-04-22
Rated 5 out of 5 by from Worked great. I bought 3 qts. Put 2 in the boiler and leak stopped immediately. Worked great. I bought 3 qts. Put 2 in the boiler and leak stopped immediately.
Date published: 2017-03-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2017-04-04
Rated 5 out of 5 by from Fixed leak...worked awesome Fixed leak...worked awesome
Date published: 2016-11-01
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