YOUR SHOWER ARM Guidance. = Premium Rainfall Shower head To Install 1. Remove old shower head by turning it counter-clockwise. Remove ary excess material eft on Shower Am threads. Usa steel wool if necessary. 2. Make sure Washer is positioned FLAT and STRAIGHT inside Connection Nut (Fig. 1). Hand frighten Connection Nut oro Shower Am (Fig. 2). WARNING: DO NOT OVER TIGHTEN Connection Nut as it may cause Washer to dislocate and ba squeezed ino Shower Am. If leakage occurs, soe below.