I have a disease......I have three of these. I have two wet chambers and one dry chamber. I have not run the dry one yet (because I have to dent it to clear my PV's). The wet ones both have serious cracks. We welded and the welds cracked, so then we patched. Now my patch is cracked and my weld on top of the patch is cracked....
The dry version feels much heaver and the seller claimed he pressure tested it for leaks before he sold it to me...so hopefully it is better. The water fittings are identical between the wet and dry versions except the dry version has a jacket welded around it...so you can run the inside of it dryer.
Oh and to answer your question, the DASA one (rumored to be built by XFT) is the wet version.
Aaron