Birm Filter

Birm does not require chemicals for regeneration, only periodic backwashing is required. When using Birm for iron removal, it is necessary that the water: contain no iron bacteria or hydroginen sulfide. If the influent water has a pH of less that 6.8, neutralizing additives such as Calcite or soda ash may be used to raise the pH. If chlorinating Birm will not remove any residual chlorine in the water. Birm may also be used for manganese reduction with the same dependability as iron removal. In these applications the water to be treated should have a pH of 8.0-9.0 for best results.

Latest high tech digital performance valve. (1.0" connections standard, 3/4" available - please specify). The timer-based unit controls the backwash cycle, to assure dependability and high efficiency.

740i Digital Control Valve


Item #


8"x44" min. tank .75 Cubic Ft. media691-B$449.87Buy NowFree Shipping! *
9"x48" min. tank 1.0 Cubic Ft. media693-B$499.87Buy NowFree Shipping! *
10"x54" min. tank 1.5 Cubic Ft. media695-B$549.87Buy NowFree Shipping! *
12"x48" min. tank 2.0 Cubic Ft. media697-B$599.87Buy NowFree Shipping! *

* Free shipping to the continental United States (all others call for a quote)

Add an Air Injector to any Birm Filter for only $90.87: Buy Now

Air injector.

If you have acidic water there are a few ways to treat you pH issues. The one way is to utilize a chemical feed pump and inject a pH neutralizing agent into the water line. Not recommended if your pH is below 6.0. Click here to view our Chemical Feed Pumps.

Another way is to use a Calcite Acid Neutralizer tank, to be used with a pH no lower than 5.5. A Calcite system uses crushed and screened white marble limestone which is dissolved in the water to neutralize acidic water. If your pH is below 5.5 then Water Filters of America™'s Calcite plus tank in conjunction with Calcite would be the proper application. A Calcite Plus system uses reactive magnesium oxide which, like Calcite, is dissolved in the water. Click here to view our Acid Neutralizers.

*To help the Birm filter oxidize you can add an air injector in combination with your Birm filter. Air injection is the chemical free way to oxidize iron in the water. Air injectors enhance the performance of Birm filters. The injector can be installed in-line between the pump and the well tank, and draw air into the system as the pump cycles.

Please Note: Some assembly is required on most purchases. You should contact our tech support staff before beginning installation for instruction. The instructions given will be quite simple but necessary. Thank you.

Please feel free to call us at the toll free number listed below or email usat the e-mail address below for more information.

Water Filters of America™®: The best name in Iron filters!