This is going to be impressive John, the box is much larger, and deeper, than I imagined, even with the ‘blocked’ area there’s still going to be a substantial pour of ‘water’.
Are you going to be using two-part resin, or are you going to try Leo’s (Biggles50) artist’s pouring acrylic method that he used to good effect in his Advice for making a running stream post?
G, 