ok ... never thought I'd have this problem .. where do you all buy the pex to run inside the house? The underground pipe is on it's way but I thought I would find out what it is going to cost me indide the house and that is just as difficult! I called the plumbing supply houses and half will not sell to the general public and the other will only sell in 300 ft coils (at $370) .. I only need 100 ft total!! not sure what to do. I see some on the home depot web site.. not sure if it's good enough to work. any advice?