Mixing metals on compression fittings

[Hillabaloo]

The pipe has the blue plastic lining, but the inserts are solid white. See picture. Should I use different ones for copper compression fittings?

 

[ShaunCorbs]

Correct ones for compression fittings

 

[Hillabaloo]

Thanks. Very reassuring. Just googled and educated myself on the two types of insert. Pure chance that I bought correct ones.

 

[Millsy 82]

What olives have you used on the speed fit? I've had a couple pop in the past and now only use copper olives as they dig in better.

 

[Hillabaloo]

I used copper olives. Also used ptfe tape over olives.

 

[Millsy 82]

I used copper olives. Also used ptfe tape over olives.

Shouldn't put ptfe tape over the olives.

 

[Hillabaloo]

Thanks will change it

 

[chris watkins]

Shouldn't put ptfe tape over the olives.

Why ?

 

[Millsy 82]

Why ?

Because it doesnt need it. Maybe a bit of paste but ptfe is for threads.

 

[Scott_1979]

Nothing wrong with wrapping PTFE round an olive, it works just fine.