Blake, just found this fogging unit on Evilbay and it claims to use only tap water?? There are two available, the older unit which is non-proportional and half the price of the second one which is proportional, both are equipped with fans.
I can't seem to in large the picture to see the unit.Not to sure how much moisture I would want around my receiver board,but these units do work,but are you sure their not requiring the glycol fog fluid with water added to a concentrate of glycol? Could you post the link? Thanks Blake