Suction is created using heat (fire) or mechanical devices (hand or electrical pumps).
The plant's feedwater pump is powered by a turbine, rather than electrical pumps like in many other plants.
Improved electrical pumps coming onto the market may enhance the effectiveness of the technology.
Consequently, operators were advised to disable electrical pumps in January 1997.
Individual bicycles can park in secured parking lots linked to the system, equipped with electrical public pumps.
But the electrical pump from the farm well was useless.
The third group is a set of electrical pumps drawing water from the deaerators.
If fires broke out, they would be impossible to fight without the electrical pumps used to move die water.
On 29 March, the fire trucks which had been used to inject water into the reactor were replaced by electrical pumps.
Fresno was left without access to its water wells because the electrical pumps shut down.