Exclusive West Coast Representative for

ARCHConstant Chlor® Plus
Dry Calcium Hypochlorite Feeding system

The Constant Chlor® Plus dry calcium hypochlorite feeding system is designed to prepare and automatically deliver a consistently accurate dose of liquid available chlorine for disinfection applications.  This patented feeding system can supply up to 250 pounds of AVCL/Day.

Depending on the application, the feeder uses NSF Standard 60 listed Constant Chlor® Plus dry calcium hypochlorite briquettes or Dry Tec® briquettes and patented spray technology to produce fresh liquid chlorine solution as needed.

The fresh made reservoir is filled with approximately 1.7% available chlorine solution and volume is maintained via an electronically controlled spray manifold.  The hypochlorite solution is injected into the application with an appropriate, highly accurate positive displacement chemical metering pump specified for the application.  Most metering pumps can be mounted directly to the pump mounting plate on the Constant Chlor® Plus skid. Arch can also design and provide custom feeding solutions utilizing Patented Spray Technology for applications that require unique feed rates and application mechanics.

Dry Calcium Hypochlorite Feeding system

Municipal Applications

  • Remote Well Sites
  • Reclaimed Water
  • Booster Stations
  • Surface Water Treatment Plants
  • Waste Water
  • Ground Water Treatment Plants

Potable Water

  • Provides hypochlorination to disinfect
    water supplies in smaller communities
  • Requires low initial investment
  • Maintains economical operating costs

Private Water Supplies

  • Sanitizes wells
  • Sanitizes cisterns
  • Sanitizes natural springs
  • Sanitizes storage tanks



  • Effective alternative to liquid bleach and chlorine gas
  • Capital cost of installation is 1/2 to 2/3rd less than sodium hypochlorite installations
  • Efficiencies in bulk storage and man hours
  • Consistent and reliable chlorine solutions
  • Operates at normal atmospheric pressure and is readily serviceable for refilling and cleaning while in operation
  • Eliminates metering pump air locks due to off-gassing
  • Eliminates transfer spills
  • Delivery up to 250 lbs. AVCL per day
  • SCADA and modem compatible
  • Skid mounted for easy installation on 14.5 sq. ft. footprint; easily fits through a 3 foot door
  • Minimizes man hours for maintenance and shut downs

Chlorine feed-rate

Discharge Pressure Range
Water Inlet Size
Solution Outlet (injector) Size
10.5lbd. AVCL/hr
up to 250 lbs. AVCL/day
0 - 150 psig
1/2 inch, F NPT
3/4 inch, M NPT
Dry Chemical Capacity
Site Requirements:
  Inlet Water
  Operating Temperature
220 lbs

2.6 gpm @ 50 - 150 psig
20amp @ 120V/1ph/60Hz
40 - 120 degrees F

Other Water Treatments

  • Controls slime and maximizes cooling efficiency in cooling towers, ponds and reservoirs of power plants
  • Controls growth of slime in commercial air conditioning systems, improving cooling efficiency and eliminating unpleasant odors
  • Destroys disease producing organisms in raw or treated sewage
  • Keeps decomposing septic sewage odors and masonry disintegration in check by "up sewer hypochlorination"

Food Safety Applications

Pre-Harvest Applications

  • Sanitization of irrigation lines
  • Prevention and eliminatin of
    bio-fouling in irrigation emitters
  • Well treatment
  • Impoundment treatment
  • Seed treatment

Meat processing

  • Poultry
  • Red Meat

For additional information, call

Post-Harvest Applications

  • Disinfection of process water
  • Packing sanitization
  • Post-harvest washing of:
  • Apples
  • Asparagus
  • Bean sprouts
  • Carrots
  • Cherry
  • Peaches
  • Mushrooms
  • Nectarines
  • Nuts
  • Potatoes
  • Citrus Fruits
  • Melons
  • Pears
  • Peppers
  • Tomatoes

Industrial Applications

  • Bottling Plant Process Water
  • Hot Pack Water
  • Chemical Scrubbing
  • Algae Control
  • Foam Control
  • Reclaimed Water
  • Super Chlorination

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