Fixed shower riser leaking

[RichN]

I have a fixed shower riser going onto a threaded 2 way diverter . It leaks between the nut which is part of the rail and the actual rail. It seems like it should have a o ring as it is slightly loose . I have the washer in place ?
Cust brought of Ebay so might be faulty .
many thanks

 

[PlumbBobBob]

maybe a slightly thicker rubber washer is needed. oh and welcome to the forums

 

[RichN]

Thanks Steve