Thieves in O'Fallon were targeting backflow preventers at homes and businesses.
From the stltoday.com
Someone has been stealing backflow preventers from O'Fallon homes and businesses.
From the stltoday.com
Copper pipe and a backflow valve were reported stolen from a sprinkler system.
From the stltoday.com
At very high flows, the American River actually causes backflow in the Sacramento River.
From the sacbee.com
However a tender for some backflow valves will go out later this month.
From the batemansbaypost.com.au
In Roseville, thieves have stolen backflow valves 46 times between October and early May.
From the sacbee.com
The sewers couldn't hold the water, and you had the backflow from the Hackensack River.
From the lohud.com
A plumber installs a backflow preventer in a South Venice home in 1999.
From the heraldtribune.com
Louis Sewer District prepare to install a backflow system in front yard of Kurt Odendahl.
From the stltoday.com
More examples
A flow that returns toward its source
(Backflows) Immigration is the introduction of new people into a habitat or population. It is a biological concept and is important in population ecology, differentiated from emigration and migration.
The flow of a fluid (through a pipe etc) in a direction opposite to that which is normal or intended
Movement of water (or other liquid) in any direction other than that intended.
A reverse flow of water or other liquids into the water supply pipes, caused by negative pressure in the pipes
The unwanted reverse flow of liquids in a piping system.
A reverse flow condition, created by a difference in water pressures, which causes water to flow back into the distribution pipes of a potable water supply from any source or sources other than an intended source. Also see backsiphonage and cross-connection.
A hydraulic condition caused by differences in pressure.
A flowing back or reversal of the normal direction of wastewater from homes and buildings, leading to the possible contamination of potable water systems.