are you planning on running the bulk heads on just one end?
Everything will be waterproofed. This is just part 1, frame. Im no where near finish. Just posted what i did this morning.Osb will cause swell when it gets wet.
Looks good, I am building a acrylic sump soon I hope. Cut most of the pieces last week. Waiting for some weld on 40. To arrive.
47x 18 x 22 it's a old 3/8" thick 90 gal tank getting the saw.How big!? For this build, i have a 55 g, glass though.