I am in the process of setting up my darkroom. I have a Haas Intellifaucet D250 which has been unused for several years. Unfortunately the power supply was misplaced and I am now not sure exactly what it looks like or what specs it has. The Haas site mentions 12V, 23 watts. It doesn't tell me if the + is on the inside pin or the - is. Does anyone have this faucet, and if you do could you let me know what the power supply specs are. Yes, I can contact the company come Monday, but I was hoping to process some film tomorrow.