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Case Study for Customer Location
CA95:
Reservoir or Lake Use:
This is one of 40 elevated water storage tanks for potable
water. The facility plans to convert to chloramine in June 2005.
System Overview and Reservoir:
This particular tank is a 2.0 MG above ground potable water
reservoir. The tank is 32 ft. high with 36" x 36" hatch area.
Reported Problem Before SolarBee Installation:
Objectives were to thoroughly mix the water in the tank to
eliminate stratification, short-circuiting and stagnant water
conditions, and to provide a uniform 2-3 day water age. Proper,
complete mixing is required to prevent undesirable nitrification
since the city is converting to chloramine for water treatment.
SolarBee Installation:
Date: Dec. 2004, one (1) SB1250v12-PW was installed.
Results:
Initial testing by the owner showed that the SolarBee was able
to quickly destratify and completely mix the water in the tank.
When they injected chlorine for boosting in order to maintain a
1 mg/L concentration, testing showed that concentrations of free
chlorine in the SolarBee tanks were 0.98 – 1.0 mg/L throughout
the tank. Because the tanks are close to the distribution, rapid
and complete mixing is essential. Of the various options
considered, some costing over 2 million dollars, none worked as
well as the SolarBee. Based on the performance of the unit
tested and comparing the SolarBee performance results to the
other types of equipment tried in the past, the water division
decided to order thirty (30) more units that were installed in
April 2005 in various tanks of 1-4 MG, and then ordered an
additional three (3) more units in June 2005. Owner is very
pleased with the proven mixing abilities of the SolarBees, which
has made their conversion to chloramine much easier.
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