pipe dope around new lwc

JamesC in Stamford CT

With help and encouragement fromt his board, I finally removed the LWC that was ailing, and was about to install the new one I bought.

What I have on hand for the connections (eg, the plug at the bottom of the LWC, the union that gets connected to the nipple) is Gripp (see photo), and also ordinary white plumbers teflon tape. I've used Gripp for pipes, and it's never leaked.

Is Gripp OK for the LWC connections that I mentioned? Or is that asking for a difficult time if I ever have to undo anything? I'd rather just use what I have on hand so I don't have to stop and go to the store. Any sage advice?

ChrisJ

So far, I've liked just using teflon tape on brass connections and never had a problem.

Bob Bona_4

I would not use Gripp on that fitting. Stuff is nasty and doesn't like disassembly, and if any gets on your clothes, they're trashed.

Been using Megaloc with great success over the years, no Teflon on that fitting for best grounding connection. Any other place gets 4-5 wraps Blue Monster and the Megaloc over the tape.

Fred

I have the same MM #67 LWCO. Teflon tape works fine on those fittings.

JUGHNE

This is a float type cut off, not an electronic probe type, right??

Bob Bona_4

Oops, didn't see pics. Float type, still would use something less obstinate than 'ol Gripp

Steamhead

Yup. What boiler is this going on?

JamesC in Stamford CT

Going on a small, 1-pipe steam. The vapostat (installed with help from all of you!) keeps it max maybe 6 ounces. So I think from what I read above, the teflon tape will get me through this project. Really, it's just the brass to brass union, the steel plug at the bottom, the connector copper tube, and then the pigtail. All are small diameter and since I am such low pressure I will try the teflon and see how it goes. Thanks everyone for the help.

SWEI

Make sure you get some decent Teflon tape. Blue Monster or gas tape makes a world of difference.

Steamhead

Any chance this boiler could use a probe-type LWCO?