Copper Unions In Boiler Feedwater system

[JonRiley56]

All,

I have included multiple unions in my feedwater loop for my boiler. I figured it would make it easier for me to correct things etc. Do I use pipe dope on the threads of the unions ? I am using it everywhere else, but was not sure on this point.

thanks

jon

P.S. - If anyone knows of a contest for the ugliest soldering job please let me know......I am sure to be a contender..........silver solder is taking some getting used to...........not the same as sweating pipes.........

[farmerden]

Use Neverseeze or a similar product. when using pipedope or other sealants I find they won't leak AND they won't come apart-ever!! Den

[JonRiley56]

Thanks Den !!

[Lopez Mike]

The only drawback to Neverseeze and similar products is that they get on your fingers and get tracked around. The up side is that they clean up with paint thinner. I use them in place of pipe dope on threaded connections with no failures so far. Just messy, that's all.

Mike