Well it's up and going. Took two containers of ARM to fill it(more than my 6" dia. monster I had built previously). The little venturi I built for the recirc/CO2 injection into the circulation pump is working fabulously! Looks so far like we have a winner. The flow inside is great. Here's a pic of it running on my tub of LR. Well worth the work that is for sure. I'd say less than it was making a round one. Tho I know many will disagree. But when you don't have a shop for making round flanges etc. Square is sure easy to do if you can get your hands on a table saw. (thanks Troy).
If I were to do another. Square it is.
