Whole House Reverse Osmosis

Reverse Osmosis Systems
Aeration Systems
Chlorination Systems

Iron/ Greensand Systems
Ozone Systems
Ultraviolet Sterilizers
Acid Neutralizers
What's In My Water?

How to Correct Promlems with Well Water
Technical Diagrams
Frequently Asked Questions

Water Softeners
Backwashing Carbon filters
Reverse Osmosis Systems
Water Water Ionizers

Carbon Block Filter Systems
Whole House Systems
What's In My Water?

Citry Water Whole House System

Whole House Systems
Residential UV Systems
Portable Systems
What's In My Air?

Ionization Systems


6574 N. State Rd. 7 Suite 143
Coconut Creek, FL 33073

2323 W. Bainbridge Street
Building A Suite 110
Kenner, LA 70062

We Drink Clean Water




Frequently Asked Questions About Non-Chemical Iron Filtration Systems:

(1) Q. Why are these systems called "Non-Chemical?"
A. Many iron filters use greensand filter media which requires the use of potassium permanganate, chlorine or other chemicals. These filters remove iron and in some cases manganese without chemicals.

(2) Q. How do they work?
A. These systems use Birm a type of iron filter media, or a blend of Birm, and calcium and magnesium filter media. As the water flows through, a reaction occurs where the dissolved oxygen and the dissolved ferrous iron compounds form an insoluble ferric hydroxide. After these ferric particles (also known as "rust") get trapped in the filter media, they are periodically backwashed out to drain, and the filter media is ready to filter again.

(3) Q. Do these systems come in different sizes?
A. Yes. The size of the systems is directly proportional to the flow rate of the water, in gallons per minute. The higher the flow rate, the larger the system required.

(4) Q. Do these filters have any special conditions to work properly?
A. Yes! There is actually a very specific set of conditions required. The water must have a pH of 7.0 or greater for Birm filters,and 6.5 or greater for Birm Blend filters to work properly. In addition, the dissolved oxygen content must be at least 15% of the iron or manganese content. The best applications are where the systems are installed after holding tanks (where dissolved oxygen is plentiful). In some cases, if a holding tank or storage tank is not used, then an air-injection venturi must be used to increase the dissolved oxygen. Additionally, no tannins, chlorine, oil or hydrogen sulfide (rotten egg odor) should be present.

(5) Q. My water also has a very bad smell of sulfur, is this a problem?
A. Yes. Do not use these iron filters when hydrogen sulfide (a natural toxic gas formed by iron and sulfur bacteria) is present. In these applications, use ozone, chlorinate or aerate in a tank to destroy the hydrogen sulfide. Generally, it is better to use chlorination or ozone, followed by greensand or greensand blend iron filters if hydrogen sulfide and/or iron bacteria is present.

(6) Q. If I chlorinate first, can I use this type of iron filter?
A. No. These iron filters should not be used if the water has a chlorine residual. De-chlorinate before the iron filter, or use the greensand type of iron filter.

(7) Q. Are these systems big energy users?

(8) Q. I have very high manganese (greater than .05 PPM), will these iron filters remove manganese also?
A. Yes, but the pH must be between 8.2 and 9.0. One could raise the pH with soda ash or other methods to raise the pH, but it would be better to use a greensand filter to reduce manganese.

(9) Q. What maintenance is required?
A. Under the right conditions there is little maintenance. If the iron is higher than 2.0 PPM and the hardness is greater than 150 PPM, then the control valve should be disassembled and cleaned once a year. If the pH is 6.8 to 7.2, and the alkalinity is low, then small amounts of magnesium oxide must be added to the filter periodically.

(10) Q. Is there a pressure loss through the system?

(11) Q. Can I route the backwash water to my septic tank?
A. Yes. The backwash water is nontoxic and can be routed to the septic tank with no problem. It can also be routed to landscaping, although the backwash is usually very dark and orange, and will stain surfaces.

(12) Q. How frequently do I have to replace the filter media?

(13) Q. Can I get assistance in choosing an iron filter system for my application?

See drawings on how to install iron filtration systems!