OpenSprinkler › Forums › Comments, Suggestions, Requests › Protection from shorts and manual control. › Reply To: Protection from shorts and manual control. December 9, 2014 at 5:32 pm #34937 RayKeymaster @mike1: interesting thought to add a manual override switch unit. I think it’s suitable for a DIY modification, but I don’t see a high demand for this because the main purpose of OpenSprinkler is web-based control.