Lakos SUB-PAK User manual

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LAKOS SUB-PAK Series Separators are engineered for the removal of sand and other heavy, suspended
particles from domestic and private water well systems with flow rates of 3 - 28 U.S. gpm (.7 - 6.5 m3/hr) and
well I.D.’s of either 4 inches or 4.5 inches only.
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When the pump is operating, sandy water is drawn first through the SUB-PAK Separator’s inlet slots.
Centrifugal action separates the sand, causing the particles to gently fall to the bottom of the separator. The
SUB-PAK’s “flapper valve” remains closed while the pump is in operation. The sand-free water spirals upward,
through the center vortex/outlet, into the seal area surrounding the pump and to the pump’s suction. When the
pump shuts off, the SUB-PAK’s flapper valve will open, allowing accumulated sand to discharge deep into the
well. NOTE: To assure adequate purging of separated particles, SUB-PAK Separators must be installed on
water systems that operate at least somewhat intermittently, typically for no more than two continuous hours.
This time may vary, depending on the concentration of sand in the well.
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•The pump must be placed at a setting/depth where no perforations, slots or cracks are present in the
well casing.
•Water must enter the well from below the setting of the LAKOS Separator.
• The pump setting must be at least 30 ft. below the pumping water level. At least 30 ft. of pumping
submergence is required.
•The water system’s flow rate must be within the flow range of the Separator.
•The inner diameter of the well PXVWEH4 inches or 4.5 inches, depending on the SUB-PAK model being used.
•The SUB-PAK Series cannot be used in water wells where entrapped air may be a problem.
•The SUB-PAK Separator must be removed prior to employing any type of acid or chlorine treatment.
•Maximum particle concentration: 500 ppm.
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