| Massive blowout preventers are anchored to the top of underwater wells. |
| If any sails are constrained with preventers or whisker poles these are taken down. |
| The time will also be used to learn more about blowout preventers and gain more information about the explosion and sinking of the Deepwater Horizon oil rig, Salazar said. |
| Madison County will furnish service saddles, corporation stops, service tubing, curb stops, meters, backflow preventers, and meter boxes. |
| Pipeline leak detection devices, blowout preventers, and double hulling of ships are some of the major technologies used in pre-oil spill management. |
| Reduced pressure backflow preventers are more expensive, used mostly in commercial irrigation installations. |
