{"id":6599,"date":"2018-12-04T13:02:08","date_gmt":"2018-12-04T08:02:08","guid":{"rendered":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=6599"},"modified":"2018-12-04T13:02:08","modified_gmt":"2018-12-04T08:02:08","slug":"gray-water-usage-diversion-systems","status":"publish","type":"post","link":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=6599","title":{"rendered":"Gray Water Usage: Diversion Systems"},"content":{"rendered":"

While the particulars of a gray water diversion or filtration system can vary greatly, several basic steps are commonly used.<\/em><\/p>\n

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A\u00a0hand-activated valve<\/strong>\u00a0serves as an important first step in many systems, especially the more basic diversion systems. This valve allows a person to decide when water from a bathroom sink, tub or washing machine will be diverted to the garden and when it will go into the\u00a0sewage system\u00a0or septic tank. This level of regulation comes in handy to avoid overwatering during times of\u00a0heavy rain\u00a0or sending harmful chemicals or diaper water out to the garden.<\/p>\n

After gray water is diverted down a system of pipes, its first stop on its trip to the garden is a basic filter — generally a mesh screen — to eliminate larger particles, before entry into a\u00a0surge tank<\/strong>. The surge tank is used to help regulate flow by temporarily storing large amounts of gray water. This helps ensure a bathtub’s worth of drainage doesn’t all rush into the garden at once, while also preventing it from backing up into the home.<\/p>\n

Gray water can go two places from a working surge tank: out to the garden or down through a set of sewer drains. The bottom drain and the overflow drain (see above) work just like their counterparts in a bathroom sink, where the central drain provides constant drainage at the bottom while the higher, overflow drain keeps the water from rising above an undesired level.<\/p>\n

The drains on a surge tank are always open because it is not a storage tank. To keep it from becoming black water, any excess water left at the bottom has to be allowed to drain off into the sewage system. The remainder of the gray water, at this point, flows or is pumped out to the garden or into a filtration system.<\/p>\n

Filtration systems vary greatly in scope and price. The more advanced systems actually allow for treated gray water to be re-routed back into the home for use in toilets, laundry machines and even cooling systems. Some also eliminate the need for a surge tank. Simpler filtration systems are only aimed at further eliminating undesired chemicals and greases before water reaches the plants. Many of these simply involve letting gray water drain through boxes of layered sand, dirt or charcoal.<\/p>\n

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Sinkpositive, from Environmental Designworks, sits atop your toilet tank, releasing clean water for you to use. Fresh water comes in through the faucet and drains directly into the bowl.<\/p><\/div>\n

But how do you deliver gray water to an underground root system? To accomplish this, two methods of\u00a0subsurface irrigation\u00a0are used frequently:<\/p>\n

\u00adSubsurface drip irrigation\u00a0simply involves sending water out through a system of underground pipes that release water at designated spots, usually next to a plant’s root system.
\nLeach field\u00a0or\u00a0drain field irrigation\u00a0is associated with septic tanks, which use irrigative methods to drain off excess water — the principle is the same with a gray water irrigation system. Water from the surge tank is routed out through perforated pipes, buried in gravel-filled trenches below lawns or garden root systems.
\nBut no matter what the scope or cost, the most important parts of any gray water reclamation system are the people and the plants sharing the water. There is no universal standard when it comes to reusing waste water, so much of it comes down to personal needs and commitment levels. On top of that, the technology, methods and laws governing gray water reclamation are constantly changing.<\/p>\n

Source:\u00a0https:\/\/science.howstuffworks.com\/<\/a><\/p>\n

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