The ASN 5200 Series Chemical Free Iron/Sulfur  filter is intended to be an effective and economical way to remove low levels of Iron and Sulfur from water without the use of messy and dangerous chemicals or expensive pumps or an external venturi. The control valve uses a unique process to create an air bubble at the upper portion of the tank to oxidize any ferrous Iron and Sulfur prior to being filtered by the media. 
How does the ASN 5200 filter work? 
This filter works by adding oxygen to the incoming water by passing it through a bubble of compressed air. The water is then passed through a special filter bed. The special media not only increases the pH of the water to enhance iron removal but also acts as a physical barrier to trap Iron and Sulfur precipitate. As more water passes through this filter, the oxygen in the unit is used up, and the media gets loaded with Iron, and removes any residual smell. The regeneration process then begins in order to replenish the supply of oxygen, and to backwash the precipitated Iron trapped in the media bed. The filter is fitted with an inlet check valve to prevent any air from flowing backwards out of the filter tank.

ASN 5200 Value Series Chem Free Iron/Sulfur Removal

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