compression joints

[tinpan]

I am about to use compression couplers with my shower project. I have used them before but noticed on one web site that you should use plumbing tape over the olive after the first fitting and one complete turn of the nut. Advising that to make the connection perfectly watertight the joint should be unscrewed again putting aprox 8 turns of the plumbing tape over the olive, then reassemble and finish. Is this good advice?
Rgds
tinpan

 

[hi-spec plumbing heating]

>watertight the joint should be unscrewed again putting aprox 8 turns of the plumbing tape over the olive

never done it yet, and never had any leak.
but i always use some jointing compound.

i always find you only get a leak if olive is damaged, over tight, not tight enough or pipe damaged

 

[tinpan]

Gday. hi-spec. Where do you apply the jointing compound? Is it to the olive or the nut threads??
Rgds
tinpan.

 

[hi-spec plumbing heating]

put abit on your finger and just smear it around in the nut so when you push the nut to the fitting it will cover the olive anyway.

 

[dal5band]

The actual seal is made by the olive, so no good putting stuff on the threads. Most joints don't need anything.