Hey all,
I received my Maze3 last week and it also had cracks. Not just around the bolts but also around one of the hose barbs. I emailed DD Saturday night and they responded about 5 minutes later (!!!). I sent him some pictures and he said he would send me a new block. I just wish he would have sent it at least 2nd day like I ordered my original. I should have had my system together and I still haven't received it (they are in Portland I am in North Carolina). So make sure to check everywhere when you get one of these to make sure there are no cracks. Mine had 6 total.