I'm installing a ixer bar shower. I've installed push fit wall plate elbows onto the wall, and the shower was supplied with a pair of offset connectors. I understand that the connectors are offset (Z) so that once the wall plate elbows are attached to the wall, you can adjust the height of the shower / width of the connection by twisting the connector. I've done this but unless I have both connectors completely tight, the joint leaks, and fully tightening means that one of the connectors comes to rest at about 6 oclock an the other at aroung 12 oclock. Could someone tell me what Im doin wrong. After speaking to the manufacturere , they have supplied me with a pair of O rings, but I cant see how they will help.. Im really confused and would appreciate a point in the right direction....thanks very much