NELSEN C SERIES 1 Inch Backwash Birm Filter 1 Cu Ft--This unit is not out of stock - You must call us direct at 813-626-9498 to order - mfg does not allow us to use the add to cart feature

10x44 resin tank 1.0 cubic feet of resin 5 gpm service flow rate 5.5 gpm backwash flow rate Floor Space Required is 11x14x51 Shipping Weight is 90 lbs

**TAMPA BAY AREA CONSISTS OF THE FOLLOWING COUNTIES: HILLSBOROUGH, PINELLAS, POLK, AND PASCO**

***SOUTHERN AREA CONSISTS OF THE FOLLOWING COUNTIES: MANATEE AND SARASOTA

****NORTHERN AREA CONSISTS OF THE FOLLOWING COUNTIES: CITRUS AND OSCEOLA

ANY OTHER COUNTY CONTACT US FOR INSTALLATION COSTS

LOOP INSTALLATION = LOOP FOR WATER SOFTENER WITH DRAIN AND ELECTRIC LOCATED CLOSE TO THE INSTALLATION POINT

REPLACEMENT INSTALLATION = REPLACING AN EXISTING WATER SOFTENER THAT HAS BEEN CORRECTLY INSTALLED

NEW STANDARD INSTLLATION =NEW INSTALLATION W/PIPE ON GARAGE SIDE, ELECTRIC W/IN 10FT AND DRAIN W/IN 15-20FT OR FRENCH DRAIN

ANY OTHER INSTALLATION PLEASE CONTACT US.

CONTACT INFORMATION:

TOLL FREE: 1-877-345-2770 LOCAL TAMPA: 813-832-9293 813-626-9498 EMERGENCY #: 813-244-5185 FAX: 813-620-0174 EMAIL: glasswatersystems@msn.com glasswatersystems@yahoo.com

***CLACK CORPORATION HAS DETERMINED THAT THEIR EQUIPMENT MUST BE SOLD WHERE THE DEALER IS ABLE TO PERFORM PRE-SALE AND POST-SALE ON SITE SUPPORT. THIS MEANS THAT GLASS WATER SYSTEMS MUST DELIVER THE SYSTEMS, INSTALL THE SYSTEMS, AND PROVIDE WARRANTY AND OUT OF WARRANTY REPARIS.

GLASS WATER SYSTEMS HAS A FULL SERVICE DEALER THAT CAN DO THESE ITEMS IN THE TAMPA BAY AREA WHICH INCLUDES THE FOLLOWING COUNTIES:

HILLSBOROUGH, PASCO, POLK, PINELLAS, CITRUS, MANATEE, SARASOTA, AND OSCEOLA.

WE WILL INSTALL EQUIPMENT ALL OVER THE STATE OF FLORIDA - BUT THE PRICES FOR INSTALLATIONS WILL BE CALCULATED WITH THE FACT OF LONG DISTANCE SERVICE.

WE WILL NOT DROP SHIP ANY OF THIS EQUIPMENT OUT OF OUR SERVICE AREA (SPECIFICALLY OUTSIDE OF THE FLORIDA OR THE TAMPA BAY SERVICE AREA). YOU ARE WELCOME TO CONTACT CLACK CORPORATION TO HAVE THEM. LOCATE A DEALER IN YOUR AREA.



Birm is an efficient and economical media for the reduction of dissolved iron and manganese compounds from raw water supplies. It may be used in either gravity fed or pressurized water treatment systems. Birm acts as an insoluble catalyst to enhance the reaction between dissolved oxygen (D.O.) and the iron compounds. In ground waters the dissolved iron is usually in the ferrous bicarbonate state due to the excess of free carbon dioxide and is not filterable. Birm, acting as a catalyst between the oxygen and the soluble iron compounds, enhances the oxidation reaction of Fe++ to Fe+++ and produces ferric hydroxide which precipitates and may be easily filtered. The physical characteristics of Birm provide an excellent filter media which is easily cleaned by backwashing to remove the precipitant. Birm is not consumed in the iron removal operation and therefore offers a tremendous economic advantage over many other iron removal methods. Other advantages of Birm include; long material life with relatively low attrition loss, a wide temperature performance range and extremely high removal efficiency. Negligible labor costs are involved because 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 oil or hydrogen sulfide, organic matter not to exceed 4-5 ppm, the D.O. content equal at least 15 percent of the iron content with a pH of 6.8 or more. If the influent water has a pH of less that 6.8, neutralizing additives such as Clack Corosex®, Calcite or soda ash may be used prior to the Birm filter to raise the pH. A water having a low D.O. level may be pretreated by aeration. Additions of chemicals to influent or backwash water which contacts Birm media may inhibit iron or manganese removal or may break down or coat Birm media. Chlorination greatly reduces Birm’s activity. High concentrations of chlorine compounds may deplete the catalytic coating. Polyphosphates are known to coat Birm and reduce Birm’s ability to remove iron or manganese. Before adding any chemical to the influent or backwash water, the chemicals compatibility with Birm should be thoroughly tested. Clack 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. If the water also contains iron, the pH should be below 8.5. High pH conditions may cause the formulation of colloidal iron which is very difficult to filter out. All other conditions remain the same for either manganese or iron removal.