Performance, installation and cleaning precautions for pre-filter

　　Corrosion, sediment and other impurities in the pipeline not only cause water pollution and failure of water equipment control components, but also precipitate and breed bacteria on the pipeline. On the other hand, it will form electrochemical substances, causing corrosion of metal pipes. Generally, rooftop water tanks are cleaned every six months, but water pipes cannot be cleaned. The water we use in our daily life is directly discharged from the water pipes, which brings great harm. Therefore, it is necessary to install a pre-filter Water filter A pre-filter, also known as a "pre-filter", is a reliable impurity filtration device, generally installed at the front end of the water supply pipe, which is a coarse filtration equipment for system water supply. It is mainly used to filter mud, rust, red worms and large particulate impurities in tap water, preventing a large amount of precipitated impurities generated in the water supply network from affecting water quality, restoring water quality to tap water standards before leaving the factory, and extending the service life of subsequent equipment in the water system.

　　Performance of pre-filter: Pre-filter Water filter It usually has a "T" structure, with the "horizontal bar" position and the left and right ends being the inlet and outlet respectively, the "vertical bar" position being the body and the inner cylindrical filter screen, and the lower end being the drain port, controlled by a valve to open and close. The pre-filter uses stainless steel and synthetic PE materials, which are hygienic and non-toxic, do not breed bacteria, and will not cause secondary pollution. The accuracy of the filter screen is between 5-300 microns, and most household ones are 100 microns. The pre-filter forms a microelectrode filtration unit through the filter screen. During filtration, water passes through the filter screen from the outside, and impurity particles are trapped in the filter screen, and the filtered water flows out of the filter. The pre-filter is small in size, does not require electricity, does not require a special floor drain, and has a low investment cost. It not only improves water quality, but also extends the service life of other water devices. It is an indispensable primary water purification equipment for modern families. The pre-filter can be used for life after one installation, and no consumables are required after installation. The filtered pollutants are usually adsorbed on the metal filter screen. As long as the backwashing function of the pre-filter is turned on regularly, the metal filter screen can automatically backwash and remove pollutants, making cleaning and maintenance convenient, and no consumables will be needed in the future.

　　Installation of pre-filter: Household pre-filters are installed at the main pipe inlet, and the pre-filter is equipped with flexible joints, which can easily achieve separation or combination of the joints and water pipes. It is generally installed in the cabinet and installed with water pipes during decoration. In order not to affect the use of the subsequent water system, a bypass water system can be installed in front. Some pre-filters have universal joints, so the filter can be installed on horizontal and vertical manifolds, and the separation or combination between the main unit and the joint can be achieved within 10 seconds.

　　Cleaning of pre-filter: Pre-filter Water filter It is easy to filter impurities in water, but it is laborious to clean. Backwashing technology makes cleaning the pre-filter easy. Forward filtration is to separate impurity particles in the water inside the filter screen, and backwashing is to discharge the impurities inside the filter screen from the filter. The pre-filter is generally cleaned every one or two months. For manual backwashing, a small basin can be placed under the sewage pipe. Rotate the top knob counterclockwise to the bottom to change the water flow direction, automatically backwash, clean the filter screen, and discharge sewage. The water flows from the inside to the outside to forcefully wash away various impurities intercepted at various angles on the filter screen. The sewage can be discharged for 10-15 seconds, and the pre-filter should be removed and thoroughly cleaned annually.