Was wondering if you can help me... hubby and I are trying to install our Hansgrohe Raindance Showerpipe. We followed the instructions to the letter and we still have the s-union showing between the faucet and the escutcheons. The instructions say that the end of the s-union should extend 1 3/8” outside the surface of the finished wall. Our s-union are at 1 5/8" showing but, even so there is a ton of threads still visable after the escuteons is threaded on and the valves on put on. Any ideas? Thank you for your time.