Sand / Media Filter — Clean Water Protection for Drip Irrigation
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Sand / Media Filter — Clean Water Protection for Drip Irrigation
Category: Drip Irrigation Components
Price on request
A sand / media filter removes sand, silt, algae, organic matter, and suspended particles from irrigation water. It protects drip emitters, valves, pressure regulators, and fertigation equipment from clogging and damage. During normal filtration, dirty water passes through the media bed and clean water exits to the irrigation system. During backwash, water flows upward through the media to remove trapped dirt through the waste outlet.
Product Description
A sand / media filter is an irrigation filtration unit used to remove sand, silt, algae, organic matter, and suspended particles from water before it enters the drip irrigation system. It is especially important when the water source is a river, pond, canal, reservoir, open tank, or any source containing organic matter and fine particles.
In drip irrigation, clean water is very important because emitters and drip laterals have small openings that can easily clog. A sand / media filter protects the system by trapping dirt inside layers of filtration media such as coarse sand, fine sand, garnet, gravel, or other graded materials. Clean water then exits the filter and flows to the mainline, valves, pressure regulator, fertigation unit, and drip irrigation zones.
During normal filtration, dirty water enters the filter and passes downward through the media bed. As the water moves through the layers, suspended particles are trapped. Clean water is collected at the bottom by the underdrain or lateral collector and then sent to the irrigation system.
When the filter becomes dirty, the pressure difference across the filter increases. The filter must then be cleaned by backwashing. During backwash mode, water flows upward through the media bed, lifting and loosening the trapped dirt. The dirty backwash water is discharged through the waste outlet. This restores the filter’s performance and keeps the irrigation system protected.
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