MY TRITON 80 9.5W ELECTRIC SHOWER IS WIRED STRIGHT FROM THE MAIN FUSE BOX 40 AMP .STRIGHT INTO TRITON SHOWER IN BATHROOM IN PLASTIC TRUNKING,NO SWITCH OR SAFTY CUTOUTS ECT ,SHOULD I CHANGE THE WAY IT HAS BEEN INSTALLED,OR LEAVE IT ALONE,I WOULD LIKE TO CHANGE IT FOR PIECE OF MIND,SO WHAT IS THE...