my first post - and it's kind of a doozy so here goes. i'm interested in building an above ground cement hot tub and am just beg. the process of research. i had seen one a couple of years ago that basically looks like cinder blocks stacked up and then covered w/ cement. i know that's probably over-simplifying the situation (by a long shot) but, it seems to me that if designed right that could be a possibility. i know there would probably have to be special concrete involved, etc. but has anyone ever seen something like this done?