Reply by runswithscissors

I think it’s likely you will have several hundred (not thousand) pounds of water, but not water pressure, which is a much different thing. Good luck with the project. Those are all beautiful tubs. I looked at the link in Don’s post, and was amused at the idea of a mansion which is environmentally sustainable. Something wrong with the thinking here?

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened