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 (20, 20n) 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 (20, 20n); a supply line in fluid communication with the server storage vessel (20, 20n) for receiving the fluid therefrom and delivering it to an end user; a first vaporizer (16, 36) 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 (26, 26n, 36) operable to heat the fluid that flows through the supply line; a pressure sensor (30, 34, 34n) for measuring fluid pressure in the discharge line or the supply line; and a control system in communication with: the pressure sensor (30, 34, 34n), 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 (20, 20n) 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 (20, 20n); a supply line in fluid communication with the server storage vessel (20, 20n) for receiving the fluid therefrom and delivering it to an end user; a first vaporizer (16, 36) 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 (26, 26n, 36) operable to heat the fluid that flows through the supply line; a pressure sensor (30, 34, 34n) for measuring fluid pressure in the discharge line or the supply line; and a control system in communication with: the pressure sensor (30, 34, 34n), 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 (30, 34, 34n), 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.