How-it-Works--Prisons-Jails-and-Correctional

How it Works: Prisons, Jails and Correctional Facilities


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Toilets

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The interface of atmospheric pressure at the toilet bowl and a constant vacuum pressure in the waste piping network provides a highly efficient flush, using only ½ gallon of water.

When the push button is activated, the extraction valve opens, allowing atmospheric pressure to push waste into the vacuum piping and toward the vacuum center. A water valve is simultaneously activated, allowing the toilet to be rinsed and refilled.

Sinks, Lavatories and Showers

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Wastewater from plumbing fixtures flows via gravity into an Accumulator (collection point), typically located behind or below the equipment. When the waste reaches a pre-determined level in the Accumulator, the controller automatically opens the normally closed extraction valve, allowing the vacuum to evacuate the collected waste into the vacuum piping network for delivery to the Vacuum Center. Overhead piping can be routed where convenient in the ceiling space or across an entire campus in shallow trenching.

Vacuum Center

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The Vacuum Center includes vacuum pumps, waste collection tanks and controls that automate the operation of the system. Waste is delivered from fixtures and equipment to the Vacuum Center waste collection tanks via the vacuum piping network. Waste is temporarily held at the vacuum center before being discharged to sanitary sewer mains or treatment facilities. The vacuum system may also include sewage grinders and discharge pumps to transfer waste from the collection tanks into the sewer.