OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Relay board that works with DC solonaid ? › Re: Re: Relay board that works with DC solonaid ? May 20, 2014 at 3:43 pm #26900 ChaoscripTMember Just to be sure scottsh, AC valve need to connect to electriciy ? or they come only with 2 wires that connect to OSPi ? Also another question, the AC valve is water restitent ? Regards.