Customer Reviews for Hercules 32 oz. Boiler Liquid

Product easy to introduce into system. Continuous drip in boiler has been eliminated. No system performance problems observed due to introduction of product into heating system. Ordered two quarts and only needed to use one quart. Produect used On - Residential Hydronic Radiant Heat Boiler System 175,000 Input/135,000 Output, 21 PSI Static Pressure, 30 PSI Relief Pressure, Operating Temp. Approx. 140 degrees F. Boiler Age: Installed 1964.

I had a leak in my boiler and it keep putting out the piolit light, had to do something so I figured I will try this stuff; I am really surprised with the results.It didn't only stop the leak but when it dried it showed the size of of it. I would use this product again if needed to.

A week before heading out on vacation I discovered a leak in a pipe joint on my boiler. Not having enough time to get a plumber in to repair the problem I tried some plumbers putty and other temporary sealants to resolve the issue. Each of these seemed to slow the leak down, but did not completely stop the problem. With just a couple of days left I decided to give this product a try. I followed the instructions unscrewing the pressure releif valve and pouring the product into the boiler. After reinstalling the releif valve I fired up the boiler. I was stunned to see the leak completely stop within minutes. I held my breath as the boiler pressure rose as this is when the other products failed. No sign of the leak reappeared. I checked the boiler over the next two days and was happy to see that the boiler remained dry and the water level in the boiler remained intact. This is a wonderful product!