Ok, so I've been searching for anything regarding the polarity of the 24v Sprinkler Power Adapter...but I find nothing. The online connection diagram just shows 2 current paths from a 24v AC 750ma Power Adapter, but it doesn't give any indication of polarity? Does it matter? The lack of detail in any of the instructions is a bit frustrating, and while this is not complex, there are certain things that I believe deserve even just a little mention...such as the polarity of the power supplied to the board. I would greatly appreciate a reply from anyone that has any info as to the polarity, and it might be a good idea to indicate it on the board, or the plastic connector, or even the picture on the wiki, heck, even a little blurb on the picture of the Power Adapter to indicate it would be awesome, even if polarity doesn't matter...tell us. Thanks