Backflow
Backflow is a term in plumbing for an unwanted flow of water in the reverse direction. It can be a serious health risk for the contamination of potable water supplies with foul water. In the most obvious case, a toilet flush cistern and its water supply must be isolated from the toilet bowl. For this reason, building codes mandate a series of measures and backflow prevention devices to prevent backflow.
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Air gap (plumbing)Atmospheric vacuum breakerBackflow (plumbing)Backflow prevention deviceBackflowsBackwater valveBasementButterfly valveDouble check valveGlossary of environmental scienceIsovolumetric contractionPiping and plumbing fittingPositivus FestivalRegurgitation (circulation)SiphonStaged combustion cycleTundish
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Backflow
Backflow is a term in plumbing for an unwanted flow of water in the reverse direction. It can be a serious health risk for the contamination of potable water supplies with foul water. In the most obvious case, a toilet flush cistern and its water supply must be isolated from the toilet bowl. For this reason, building codes mandate a series of measures and backflow prevention devices to prevent backflow.
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Backflow is a term in plumbing ...... n devices to prevent backflow.
@en
逆流（ぎゃくりゅう）とは、流れが普通とは逆の方向へ向かうこと ...... くる）についても、順流（じゅんる）と共に本項で解説する（）。
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Backflow is a term in plumbing ...... n devices to prevent backflow.
@en
逆流（ぎゃくりゅう）とは、流れが普通とは逆の方向へ向かうこと ...... くる）についても、順流（じゅんる）と共に本項で解説する（）。
@ja
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Backflow
@en
逆流
@ja