A multi-vessel fluid storage and delivery system comprising: a primary storage vessel for storing a gaseous fluid in liquefied and vapor form; said gaseous fluid being in gaseous form at standard temperature and pressure, but stored in liquefied and vapor form in said primary storage vessel ; a server storage vessel for storing the gaseous fluid in liquefied and vapor form; a pump apparatus in fluid communication with the primary storage vessel for receiving and pressurizing the fluid therefrom and delivering it to a discharge line ; the discharge line being in fluid communication with the server storage vessel ; a supply line in fluid communication with the server storage vessel for receiving the fluid therefrom and delivering it to an end user ; a first vaporizer operable to heat the fluid that flows from the primary storage vessel through the discharge line to transform the fluid into a gaseous state such that the fluid in the discharge line downstream from the first vaporizer is in the gaseous state; a second vaporizer operable to heat the fluid that flows through the supply line ; a pressure sensor for measuring fluid pressure in the discharge line or the supply line; and a control system in communication with: the pressure sensor , to receive fluid pressure measurements from the pressure sensor; and the pump apparatus , to send command signals to the pump apparatus to control operation as a function of the measured fluid pressure to control fluid pressure in the supply line according to predetermined pressure values based upon predetermined operating conditions. a primary storage vessel for storing a gaseous fluid in liquefied and vapor form; said gaseous fluid being in gaseous form at standard temperature and pressure, but stored in liquefied and vapor form in said primary storage vessel ; a server storage vessel for storing the gaseous fluid in liquefied and vapor form; a pump apparatus in fluid communication with the primary storage vessel for receiving and pressurizing the fluid therefrom and delivering it to a discharge line ; the discharge line being in fluid communication with the server storage vessel ; a supply line in fluid communication with the server storage vessel for receiving the fluid therefrom and delivering it to an end user ; a first vaporizer operable to heat the fluid that flows from the primary storage vessel through the discharge line to transform the fluid into a gaseous state such that the fluid in the discharge line downstream from the first vaporizer is in the gaseous state; a second vaporizer operable to heat the fluid that flows through the supply line ; a pressure sensor for measuring fluid pressure in the discharge line or the supply line; and a control system in communication with: the pressure sensor , to receive fluid pressure measurements from the pressure sensor; and the pump apparatus , to send command signals to the pump apparatus to control operation as a function of the measured fluid pressure to control fluid pressure in the supply line according to predetermined pressure values based upon predetermined operating conditions. the pressure sensor , to receive fluid pressure measurements from the pressure sensor; and the pump apparatus , to send command signals to the pump apparatus to control operation as a function of the measured fluid pressure to control fluid pressure in the supply line according to predetermined pressure values based upon predetermined operating conditions. <EOS>