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Case Study for Customer Location
NV94:
Reservoir or Lake Use:
Original installation was in one of 30 underground water storage
tanks used for potable water by the water district
System Overview and Reservoir:
This particular tank is a 24.5 MG underground potable water
reservoir that is divided in half internally by a barrier. Total
dimensions of the reservoir are 3 acres in area and about 25 ft
deep.
Reported Problem Before SolarBee Installation:
Objectives were to thoroughly mix the water in the tanks to
eliminate stratification, short-circuiting and stagnant water
conditions, and to provide a uniform 2-3 day water age. The
water district tried some submersible high HP large banana-blade
mixers and found them to have serious problems, including major
failures and extensive maintenance requirements associated with
corrosion through the motor housing and the gearbox.
SolarBee Installation:
Date: March 2004: two (2) SB10000-PW units were installed, one
in each compartment of the tank. July 2005, replaced existing
units with 2 SB10000v12-PW units, and installed nine (9)
SB10000v12-PW units in other tanks 10-27 MG in size.
February-March 2006, installed eight (8) SB10000v12-PW units in
other tanks of similar size.
Results:
The SolarBees significantly improved mixing and resolved the
maintenance issues with corrosion. Owner reported that improved
mixing resulted in a significant reduction in the amount of
chlorine needed for boosting (from about 1,000 down to about 200
gallons per month). Based on the performance of the two units
tested and comparing the SolarBee performance results to the
other types of equipment tried in the past, the water district
is in the process of adding SolarBees to all their potable water
storage tanks, as well as specifying SolarBees for all new and
future tanks. Owner is very pleased with the consistent,
whole-tank mixing and the energy/economic savings achieved by
using solar-powered circulators.
Dish and other components being
assembled in tank
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