Tannin Filters
Sizing Guide
| Model | Number of Bathrooms in Home | Flow Rate | Backwash Flow Rate | Dimensions | 0.5 CF | 1 | 2.5 GPM | 2.0 GPM | Diameter: 6" Height: 41" |
| 1.0 CF | 1 - 2 | 5 GPM | 2.4 GPM | Diameter: 9" Height: 53" |
| 1.5 CF | 1 - 2 | 7.25 GPM | 2.4 GPM | Diameter: 10" Height: 60" |
| 2.0 CF | 2 - 3 | 10 GPM | 3.5 GPM | Diameter: 12" Height: 58" |
| 2.5 CF | 2 - 4 | 12.5 GPM | 4 GPM | Diameter: 13" Height: 60" |
Benefits
- Use the high quality Purolite TanEx anion exchange resin filter media.
- Automatically uses salt water to clean and restore the resin media.
- Salt is automatically added to the brine tank, similar to an automatic water softener
- Leaves water free of color by removing a wide range of tannins and humic acids
- Reliable Fleck 5900e-E Day-Timer control valve automatically backwashes and cleans the tannin filter based on the amount of water you use; saving salt and water.
- The 5900e-E control valve is made from non-corrosive UV-resistant Noryl has a simple mechanical design that is easy to understand and program.
Frequently Asked Questions
Q. What are tannins?
A. Tannins are astringent, bitter-tasting plant polyphenols that bind and precipitate proteins.
Tannins in well waters form from humic acid, which is one of the major components of humic substances (or Natural Organic Matter (NOM).
These are the dark brown constituents of soil organic matter. They can also be found in peat, coal, many upland streams and ocean water.
The word tannin refers to the source of tannins used in tanning animal hides into leather; however, the term is widely applied to refer to brown color in water, caused by decaying organic substances.
Tannins in well waters form from humic acid, which is one of the major components of humic substances (or Natural Organic Matter (NOM).
These are the dark brown constituents of soil organic matter. They can also be found in peat, coal, many upland streams and ocean water.
The word tannin refers to the source of tannins used in tanning animal hides into leather; however, the term is widely applied to refer to brown color in water, caused by decaying organic substances.
Q. How can tannins be removed so my well water is clear?
A. Tannins can be removed by self-cleaning automatic tannin filters These filters remove tannin by ion-exchange, using anion exchange media.
Q. How do they work?
A. The units we use regenerate with rock salt (sodium chloride) in the same way water softeners function. Frequently we see shallow wells under the influence of surface run-off water, achieve high levels of tannins (turning the water brown) during heavy rainy periods.
Q. What type of resin is used inside the tannin filter?
A. We use Tanex by Purolite. Purolite Tanex is a proprietary blend of two high performing anion exchange resins that produce outstanding tannin and organic color removal even in extremely challenging applications.
Q. Can I mix Tanex resin in my regular water softener, so it can remove color and soften water at the same time?
A. Yes you could, but we don't recommend this. A water softener should be set up to regenerate (backwash and clean the resin) based on gallons used. However a tannin filter should be set ideally to regenerate every few days in order to avoid the tannins from fouling the tannin resin.
Q. How long does tannin resin last?
A. About 5 years.
