Is solder flux a problem for steam systems?

bob young

i have been using regular no-corrode type paste flux on steam condensate lines for over thirty years and haven't seen any problem as of yet.if my customers had any problems they would sure as **** let me know about it.

Jay Raymond

Is solder flux a problem for steam systems?

Some years ago, I recall reading that most solder fluxes contain an ingredient that contaminates steam boiler water and make for water quality problems. I don't remember the ingredient and was not sucessful in finding a flux paste without it. Anyone know about this and, if so, what solder paste is OK to use?

I'm about to replace wet returns and don't want to create any problems I don't have to...

hr

Most of todays solder flux

is water soluable. A good flush after soldering, preferably with a system cleaner, should handle any flux, dirt, oil, pipe dope, etc. Not a bad idea with any wet system.

hot rod

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Tom R.

Flux

Most of what was in the old solders is hazardous waste today. Nothing in solder will corrode pipes faster than the carbonic acid that forms normally in wet returns. The Dead Men knew this and always used schedule 80 in those lines.

George_10

Our cleaner and treatment products will

take care of the left over flux and also help to maintain system efficiency, thereby reducing energy bills. Check our
web site www.rhomarwater.com

Many of the contractors posting on this site are using our products and finding there are real benefits to cleaning and treating boilers, either steam or hydronic.