The spray rig trailers are 20K to 60K. Heated hoses and guns seem to be the items that are the majority of the cost on the small units. And Yes, Gold is right!
I'm pretty much set on using spray foam because it will be sandwiched between two layers of concrete. Pour and expand method may also be something to consider.
Thanks hotwire. I haven't seen Touch-n-seal units.
If I can gather the components, I'm sure I can build one much cheaper.
Thanks for the comments and ideas. Please keep them coming!
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