Hi ,
Five years ago, I put 4 gallons of Hercules: "Cryo-Tec AG" anti-freeze in my 15 gallon gas fired, hot water boiler system.
Last year I tested it with the test strips and added some "Corrosion Inhibitor".
I have noticed on the pressure relief drain tube some bright blue corrosion. Does this indicate that the anti-freeze is
no good and its time to flush out the system and put in fresh AF ?
Does it mean that the corrosion I see on the outside of the pipe is happening on the inside of all the copper pipes ?
Thanks,
Tim
Five years ago, I put 4 gallons of Hercules: "Cryo-Tec AG" anti-freeze in my 15 gallon gas fired, hot water boiler system.
Last year I tested it with the test strips and added some "Corrosion Inhibitor".
I have noticed on the pressure relief drain tube some bright blue corrosion. Does this indicate that the anti-freeze is
no good and its time to flush out the system and put in fresh AF ?
Does it mean that the corrosion I see on the outside of the pipe is happening on the inside of all the copper pipes ?
Thanks,
Tim