Ways to prevent slip coupler slipping down a vertical copper pipe while soldering?

[Ian101]

Ideas please?

 

[quality]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

pinch the end of one of the pipes slightly

 

[AlexGas]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

The side pressure of the pipes usually holds it in place.

 

[Jay The Plumber]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

I make a pencil mark then I slightly oval the tube with grips before slipping the coupling on.
when you put the coupling on after, it stays...

 

[Alpha man]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

Give it a little squeeze!!

 

[Last Plumber]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

Start by heating the bottom pipe, it should expand and tighten

 

[JCplumb]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

You can borrow my pipe slice if you want, it squeezes the pipe so badly I can't get conex nuts on the buggers without reforming it with my pump pliers

 

[Alexspencer]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

Pipe slice under coupler or use your grips to slightly pinch the coupler on to the pipe

 

[Paulplumb]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

use powerflux. that'll lock the fitting in place

 

[JCplumb]

Re: Ways to prevent slip coupler slipping down a vertical copper pipe while soldering

use powerflux. that'll lock the fitting in place

That is a VERY good idea