I have already renovated my bathroom and when I did I installed a second shower head. I have a really hokie way of controlling it. I need to implement a way that the shower user can turn on the second shower head and it turn off after a certain amount of time or when the water turns off. The plumbing is all done and the solanoid valve works like a champ, I just need the electronics. There needs to be some kind of switch that is low voltage that can turn this thing on and off. I struggled with the electronics before, but now that I have misterhouse controlling stuff already I just setup a routine to run this as well.
Still thinking about this one.
Please stay posted.