non pressurized tank Home › Forums › Public Forums › General Plumbing › non pressurized tank This topic has 2 replies, 3 voices, and was last updated 23 years, 5 months ago by remmah. Viewing 2 reply threads Author Posts 8 Nov 2000 at 5:12 pm #273848 MasterPlumbersKeymaster Using a non pressurized tank, how high above ground level would it have to be to deliver 40 pounds of pressure at ground level? Does anyone have this formula? 8 Nov 2000 at 5:32 pm #288692 wpcParticipant .433 height, 100ft.=43.3psi 8 Nov 2000 at 8:27 pm #288693 remmahParticipant Thanks, WPC, I looked all over for that formula. Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In