Sealing Concealed system flush pipe

[ParrDi Gras]

I have recently installed a jolly concealed cistern. The flush pipe which comes out of the cistern is connected via a screw onto a thread with a plastic washer between. I have tried everything I can to prevent small amounts of water leaking from the connection??? is there any advise an experienced person can give me to fully seal the connection. It is a simple connection and I have tightened it as much as possible , I have realigned the flush pipe and washer going into the cistern.Im now thinking I now need to use some sort of sealant ???

any advise would be greatly appreciated

 

[Henno82]

have you tried using some silicon? or alternativley changed the washer as this could be faulty?

 

[Plamber]

I personally wouldnt you silicone in this situation. I would wrap PTFE tape around the washer about 10 times or so. i find tghis usually works for me if there is a small drip.

 

[spanner]

Not only silicone should make the joint (PTFE not suitable or recommend), but look very closely for THE "HAIRLINE CRACK"..!

Just a suggestion here anna thought..Best of luck.

.. Spanner