Mn, us rednecks would have don't it the old fashion way: 1" of water in a 1A pond is 27,000 gal. 5.5"x27,000 = 148,500. *
Can't wait for the pix. If this works, you'll be a youtube star...
* hope I don't come across as a wiseass...
Wiseass...Not at all my friend. You know us technical people. Making it more complicated than it needs to be
Your approach was definitely better
