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Tekleen Automatic Self-Cleaning Filters
Keep Irrigation Systems Clean and Functioning Without Pipe and Nozzle Scaling


At a golf course in Southern California, Tekleen-filtered water is being used for irrigation. The rinse water is minimal and is distributed above ground. The golf course subsequently built a shelter for the filter unit shown.

Tekleen filters save time and money that is spent every day in the labor of cleaning and replacing irrigation heads, drippers, sprinklers, screens, bags and sand media tanks the old way. Rinsing takes as little as 5 seconds, using as little as 4 gallons of rinsewater without interrupting the main flow.

Tekleen filtering is being used across the USA and worldwide for filtering water for a multitude of purposes.

At a golf course in Southern California, the water reservoir was located on a hill above the course. The problem that stood out was getting filter rinse water back up the hill to the reservoir without using an expensive pumping system. Gideon Brunn, CEO of Tekleen, visited the golf course to assess the situ?ation and offered his expertise to solve the problem. Since the Tekleen system produces very little wastewater in the self-clean?ing process, it is allowed to flow out of the filters onto turf areas to supplement irrigation, instead of being pumped uphill to the reservoir. The wastewater drains out of the filters into a perforated barrel that slows the wastewater drainage onto the turf. Additional reasons for selecting Tekleen system filters included their stainless steel construction, fewer moving parts, and easy maintenance.

Additionally, because of the self-cleaning Tekleen filters, the golf course is able to run a drip irrigation system, which previ?ously would not have been considered. Drip irrigation emitters are subject to the same clogging issues as spray heads. The Tekleen system keeps drip irrigation systems cleaner as well. In this case, with both types of irrigation systems, the water source and the type and size of debris determined the opti?mum filter mesh.

A well-known commercial brewery uses Tekleen filters in its two locations, Southern California and western North Caro?lina. The brewery is known for water conservation in its beer processing operation, as well as in irrigating the organic visitor gardens used to grow food for the brewery restaurant and for irrigating the extensive facility landscaping. Water for these purposes is retrieved from reclaimed rainwater.

The brewery captures the rainwater through permeable paving, which creates a biobed, allowing rainwater to seep into the ground and into an underground cistern for storage. The cistern has a capacity of 460,000 gallons that is used in the drip irrigation system. The Tekleen filtering system for this application is model MTF3-L with a 50-micron filter. It prevents debris from accumulating in the drip system nozzles, so that there is a constant source of irrigation water available. Downtime and labor for nozzle cleaning is infrequent and minimized.


A brewery with organic gardens that support the on-site restaurant uses Tekleen filters for irrigation water. The source for this water is collected rainwater.

The first step is to design the proper filter for the installation. The placing of the filter and the type of water that needs to be filtered, and how it will be used as output, will determine the body type of the filter, and the fineness of the screens involved.

Tekleen provides a wide range of filter bodies and screens.

In general, flow capacities are basically unlimited and can be tailored to an installation. Configurations are available that will endure pressures as high as 600 psi, and will operate on pressures as low as 15 psi. The system will tolerate temperatures up to 250F.

The Tekleen system conforms to the NSF61 standard.

Normal Filtering Operation
-Source water enters the inlet of the filter and passes through to a coarse screen.
-The coarse screen protects the fine screen from damage by any large particulates.
-Water moves through the coarse screen and down the center of the filter body through a fine screen that filters out suspended solids to a predetermined size.
-Clean water passes through the fine screen and out of the outlet of the filter, while particulates are trapped on the inside of the fine screen. This causes a pressure drop at the outlet, which initiates the self-cleaning cycle.

Backwash (Self-Cleaning) Cycle
-The backwash cycle is accomplished in seconds without interrupting the main flow. A signal is sent to an electronic controller, which opens a flush valve to start the backwash cycle.
-The dirt is aggressively vacuumed off of the screen by a suction nozzle.
-A dirt collector transfers the debris from the fine screen through the suction nozzles.
-A hydraulic motor causes the dirt collector to rotate axially and move linearly. This allows the dirt collector to scan 100% of the screen. The rinse water exits through the flush valve.
-A piston moves the dirt collector back to its original posi?tion at the end of the cleaning cycle.

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August 24, 2019, 10:44 pm PDT

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