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Screen filters used in conjunction with sand media filters Photo L. SchwanklA pressurized screen filter may be the most economical choice for groundwater filtration, since it is effective at removing inorganic material.
Suction screen pre-filter with water jets to keep the screen clean. Photo: L. SchwanklA suction screen filter uses a coarse mesh (sizes range from 10 to 30) for prescreening; it is placed at the inlet of the pump intake pipe where surface water is being pumped.
Gravity flow screen filter used in a citrus orchard Photo: L. SchwanklA gravity filter can be used with water that has a low to medium concentration of suspended solids (10 to 100 ppm). With this device, the water flows by gravity through a screen with a mesh size of 100 to 200.
Disc filter. Photo: Jack Kelly ClarkA disc filter consists of a stack of discs, each with a series of microscopic grooves. The dimension of the grooves determines the effective mesh size of the filter, ranging from 40 to 600 mesh. Water is filtered as it flows through the grooves.
The irrigation water used in microirrigation systems should be carefully evaluated to assess any potential clogging problems. Contact the laboratory that will be doing the water analysis to get guidance on collecting the sample.
There is a range of devices and chemicals on the market that their manufacturers claim treat water and prevent microirrigation clogging. It is not the purpose of this website to discuss these products, but a word of caution to prospective purchasers is warranted. Be very careful before you buy.
An informative website generally has a clear purpose, is composed of compelling content, is organized and easy to navigate. Individual contributing components should include semantic HTML. Semantic HTML can includeheaders, paragraphs, images, video, audio, graphs, charts, tables, lists, quotes, etc.
PDF files are very common to us, and widely used, yet they seem to be overlooked when it comes to accessibility. We have a few steps that can easily enhance a PDF file for everyone's benefit.
The University of California Agriculture and Natural Resources is committed to making its websites accessible to all users. ANR has designed and developed features on all websites to improve accessibility for any users with disabilities.
