This winter I have decided that I need to build myself a hot tub. I don't want a fibreglass tub I want something that will blend into my yard. What I intend to do is build one out of stone and have it look like a natural pool or pond sort of thing. There is a corner of my yard that has privacy and a nice view of the woodland area below me. It will be sunk into the ground and have a rock garden around some of the perimeter of it. I can get all the rebar,cement and stone I need for this project fairly cheap. What I havn't been able to find are blueprints for the plumbing and recirculation. Ideally being the cheap SOB that I am, I would like this info for free. Any one have any thoughts on this subject?. I have checked lots of web sites and they all want money for the info.