What size connector for this shower diverter

[mybikeisace]

Just got this twin shower diverter but its leaking from all the inlets/outlets with the connectors I bought. They fit...but are a bit loose. Tried wrapping them in ptef tape and no different. Are they just the wrong size of is their some trick to this?

I got a 15mm x 3/4 male coupler for the inlets
http://www.screwfix.com/p/male-coupler-15mm-x/82086 and a straight 15mm male for the outlets



Diverter is http://www.victoriaplumb.com/Shower...trix-Square-Twin-Valve-with-Diverter_900.html

 

[willsgas]

Are you applying ptfe to the right threads on the fitting? ie the threaded part the screws into the valve. The part where you have put ptfe is pointless and will have no effect, there should be an olive which seals by compression on that part of the fitting.

 

[mybikeisace]

I put the tape on either end of the coupler thread... so tape actually inside the mixer valve then screw the coupler in?

 

[willsgas]

No, tape should go on the threaded side to be screwed into the diverter, about 10-12 turns of tape. There is no need for ptfe to be used on the compression side of the fitting as its the olive that seals and not the threads.

 

[mybikeisace]

ok thanks - I figured as much but seemed no harm sticking it on as well.

Only been using a couple of turns so maybe thats my issue