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2. Backwater valve - Wikipedia

   en.wikipedia.org/wiki/Backwater_valve

   The valve contains a flap that allows water to exit the home, but closes to prevent the back flow into the home. [1] Backwater valves commonly activate when a city's sewer lines are unable to handle a large amount of falling precipitation; this puts homes that are tied into the storm lines at risk of having water back flow into them.

3. Backflow prevention device - Wikipedia

   en.wikipedia.org/wiki/Backflow_prevention_device

   Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

4. Backflow - Wikipedia

   en.wikipedia.org/wiki/Backflow

   Backwater sanitary valves (also known as "check valves" or "backwater valves") are also often referred to as "backflow preventers" [4] [5] They are intended to prevent backflow of sewage on the sanitary sewer line during a flood or sewer blockage, and have no connection with potable water.

5. Reduced pressure zone device - Wikipedia

   en.wikipedia.org/wiki/Reduced_pressure_zone_device

   A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices , [ 1 ] [ 2 ] reduced pressure zone assemblies (RPZA), [ 3 ] or reduced pressure ...

6. Atmospheric vacuum breaker - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_vacuum_breaker

   Inside this elbow is a poppet valve that is held "up" by the water pressure found in the system, closing the air entrance to the device. If the pressure in the "upstream side" is reduced to atmospheric pressure or below, the poppet valve drops and allows air to enter the system, breaking the siphon. [1]

7. These Insanely Helpful Garden Plants Keep The Mosquitoes Away

   www.aol.com/insanely-helpful-garden-plants-keep...

   Mosquito repellent plants can help clear your outdoor space of the insects. Try these in your garden for mosquito control.

8. Double check valve - Wikipedia

   en.wikipedia.org/wiki/Double_check_valve

   A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

9. These Insanely Helpful Garden Plants Keep the Mosquitoes Away

   www.aol.com/insanely-helpful-garden-plants-keep...

   Lemongrass. Lemongrass looks a lot like citronella, but they’re different plants. Research has found that lemongrass oil to can provide protection from some types of mosquitoes for up to 2.5 ...