Clack WS3 Automatic Filter with Birm, 24" x 72" (w/Comm. Pot)

Systems feature the Clack WS3, 3" control valve with 9 fully adjustable cycles. Optional double backwash feature offers optimum regeneration, cleaning ability and efficiency. Systems also include Birm, commercial distributors, gravel bed and an 18x33 commercial potassium solution tank.

Product Features:

• 3" top mount or side mount control valve suited for commercial and industrial applications
• Lead free brass valve body
• Economical stainless steel optional meter assembly
• Service flow rate 250 gpm (946 lpm) (56.8 m3/h). Backwash flow rate 220 gpm (833 lpm) (50.0 m3/h)
• Solid state microprocessor with easy access front removable POD
• Front panel display for Time of Day, Current Flow Rate, Totalizer and Volume/Days until Regeneration
• Methods to initiate down flow regeneration; meter delayed, meter immediate, time clock delayed
• Fully programmable regeneration cycle times
• Pre or Post treated water regenerant refill
• Days override feature; 1-28 days available
• Capacitor back-up with up to 24 hour carry over
• 20-volt output AC adapter provides safe and easy installation
• Reliable and proven DC drive

Birm

Birm is used to remove dissolved iron and manganese. The pH must be above 6.8 and dissolved oxygen content must be equal to 15% of the iron and manganese content. No regeneration is required, only periodic backwashing.

Birm® is an efficient and economical method of removing dissolved iron and manganese compounds from raw water supplies. It may be used in either gravity fed or pres sur ized water treatment systems. Birm® acts as an insoluble catalyst to enhance the reaction between dissolved ox y gen (D.O.) and the iron compounds. In ground waters, the dissolved iron is usually in the ferrous bicarbonate state due to an excess of free carbon dioxide and is not filterable. Birm®, acting as a catalyst between the oxygen and the soluble iron com pounds, enhances the oxidation reaction of Fe++ to Fe+++ and produces ferric hydroxide which precipitates and may be easily filtered. The phys i cal characteristics of Birm® provide an excellent filter media which is easily cleaned by back washing to remove the precipitant. Birm® is not consumed in the iron removal and therefore offers a tremendous economic advantage over many other iron removal methods.

Birm® may also be used for manganese removal with the same dependability as iron removal. In these ap pli ca tions the water to be treated should have a pH of 8.0 to 9.0 for the best results. If the water also contains iron, the pH should be below 8.5. High pH conditions may cause the formation of colloidal iron which is very difficult to filter out. All other conditions remain the same for either manganese or iron removal.

Advantages:

• Under the proper conditions, no chemicals to purchase for maintenance. Regeneration not required.
• Iron removal efficiency is extremely high
• Negligible Labor Cost - only periodic back washing required
• Durable material with a long life and wide temperature range
• Weighs only 46-50 lb./cubic foot.

Physical Properties:
Color: Black
Density: 47-50 lbs./cu. ft.
Effective Size: 0.61 mm
Uniformity Coefficient: 1.72

Conditions for Operation:

• Alkalinity should be greater than two times the combined sulfate and chloride concentration
• pH - 6.8+
• Dissolved Oxygen (D.O.) content must be equal to at least 15% of the iron (or iron and manganese content)
• Bed Depth - 30 - 36 in.
• Backwash Rate - 10-12 gpm. sq. ft.
• Backwash Bed Expansion - 35 -50% of bed depth
• Service Flow rate - 3.5 - 5 gpm. sq. ft. intermittent flow rates and/or favorable conditions may allow higher flow rates