nah, just one pump. The well is about 518'/158m deep, so the basement +2 stories are kind of a small add-on. I seem to recall most of the bog-standard plumbin

nah, just one pump. The well is about 518'/158m deep, so the basement +2 stories are kind of a small add-on. I seem to recall most of the bog-standard plumbing bits are rated at 120 or 150 psi. I just put in some new PEX line extensions and that stuff is rated for 160psi at 74F, 100psi at 180F and 80pis at 200F. (BTW, very good experience installing the PEX, as long one takes care to make clean cuts, it's great - I'm about to go test it for vacuum lines at my shop) Edit: Plus, I've got to say that it is really cool to get perspectives from all over the world here - India, Norway, and a few other places, just in a few comments - just how differently things are done, and what we each take for granted in our environment.