z3jab1 Report post Posted September 5, 2012 I Would like to add a switch to turn my water pump on/off in the bathroom, Today, only have 1 in front and 1 outside making it difficult traveling. Wondering what is involved ... Thanks. Share this post Link to post Share on other sites
rossboyer Report post Posted September 5, 2012 Probably the task is simply installing another switch in parallel with one of the other switches. Installing a switch in the wall may be harder than mounting one in the vanity cabinet face. The hard part is routing the wire between the two switches. If I remember correctly, the wire will be 4 conductors: ON, Off, Common & Light. You may find an identical switch at a RV Salvage or from the manufacturer of the coach. Share this post Link to post Share on other sites
