Potable Water
SolarBee
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Freshwater

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SolarBee Continuous Circulation / Mixing of Potable Water Tanks / Reservoirs
Potable / Finished Water Storage Benefits:
SolarBee's near-laminar flow / long-distance circulation:

  • Completely mixes all sizes of tanks / reservoirs corner to corner
  • Provides uniform water age and impacts the complete boundary layer
  • Prevents stagnation, thermal stratification and short circuiting
  • Self-adjusts for varying water levels
  • Provides efficient system to boost or breakpoint chlorinate
  • Reduces nitrification and loss of residual chlorine or chloramine
  • Reduces high heterotrophic plate counts
  • Reduces excessive ice buildup in cold climates
  • Fits through hatches as small as 24" diameter
  • Requires minimal if any infrastructure changes (solar-powered)
  • SCADA outputs for monitoring
  • Unit operates day and night on solar power
  • High end motor and control system with a 25 year expected life
San Francisco Public Utilities Commission (SFPUC)-2002-2004
SolarBee Mixer Study (Evaluation of theSolarBee for use in potable
water reservoirs).  Summary, Full PDF (2.3 MB)
Managing Chloraminated Systems during Warm Weather: Fast       
Response Early Boost (FREB) Approach
SolarBee Chemical Injection System
Breakpoint Chlorination Information PDF (2 MB)
Potable Water Estimate Form: English Units / Metric Units
SolarBee Benefits in Potable Water Reservoirs:
Various SolarBee Models
Available
Models are available from 1,250 gpm to 10,000 gpm, for handling
volumes of 40,000 gallons to 40,000,000 gallons of reservoir size per
SolarBee. All models are constructed of stainless steel and plastics,
and there are no gearbox or motor oils or other possible water
contaminants. All electronics are powered by low DC voltage.
Near-Laminar Flow Pattern
The SolarBee thoroughly mixes the entire reservoir, reaching all the
dead spots, even in large reservoirs with hundreds of support columns.
Breakpoint chlorination can be accomplished by injecting chlorine into
the SolarBee for complete chlorine dispersion.
Inexpensive to Operate
The SolarBee operates day and night on solar power, so there is no
energy cost. The entire machine, including the brushless motor has an
expected 25 year life, with no regularly scheduled maintenance.
Self Adjusting for
Reservoir Level
The SolarBee flotation system, together with the variable length intake
hose, self adjusts at all times for peak performance regardless of water
depth in the reservoir. No other mixing system does this.
Little or No Infrastructure
Expense
Although the various models range from 10 to 16 ft in diameter when
fully assembled, the SolarBee’s design allows it to be brought into the
reservoir through a 26 inch x 26 inch opening and to be assembled
inside the reservoir. Some models are designed to fit through a 24 inch
diameter opening without disassembly. Trained factory technicians
perform the installations, there is no need to drain the reservoir and no
infrastructure is needed.
Materials of Construction
SolarBees are certified by NSF/ANSI pursuant to Standard 61 for
equipment in
contact with drinking water.
Compared to Nozzle
Systems
By definition, when you have low flow through a reservoir and need more
mixing, then the nozzle system will not have enough flow to be of much
help. And nozzle systems don’t work at all when the reservoir is taken
offline for chlorine boosting. Finally, nozzle systems create a high energy
loss due to increased pumping pressures, and affect flow patterns
throughout the entire distribution system.
Compared to Turbulent
Mixers
High speed turbulent mixers have a very short distance of influence
unlike the SolarBee which mixes the entire reservoir. The SolarBee has
far less electrical and maintenance costs, and there is no high voltage in
the reservoir. Also, the SolarBee has stainless steel construction
instead of cast iron, and the SolarBee is not subject to problems of
cavitation or being run dry.
Options Available
The SolarBee can be equipped with a chlorine injection system, with
various solar and supplemental power kits and various optional
communications systems.
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