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SECTION 2 - EQUALIZATION TANK <br /> self pn'min) <br /> C�n/rifZi�'a/pumps. � J %o pH r I ad�usl• Tank <br /> Z"True union <br /> N/aS�P NIdfEY i 5 i _ - (xy//Ya/VfS <br /> TYLMS �"YCCI to EcyuaI. Woier e&- Euro Frrm <br /> Tan/ rYtm Lift S.�han � PN y3 Rc�just. Tank <br /> Kdri F/oaf 5wid�{�r5 Z"Pmf ud/✓C5 <br /> ,4 <br /> 30Gt� Gc+licn Stee/ f«r1�d Tcrn,� <br /> Figure 3-3 Equalization tank <br /> 2 . 1 Equipment list: lEa. 3000 gallon steel coated tank <br /> 2Ea. Self priming centrifugal pump <br /> (Model: GNOK 1 1/2 / 2DL-. 5C) <br /> 2Ea. 2" true union ball valves <br /> 2Ea. 2" foot valves <br /> lEa. Kari float switch (Model: 4Y5E) <br /> Wastewater is pumped from the lift <br /> station to be stored at the equal . <br /> tank for treatment transfer. <br /> 2 . 2 Pump operation 1. The level of the wastewater in the <br /> equalization tank rises to the first <br /> stage of the Kari float switch. The <br /> Kari float switch energizes one of <br /> the self priming centrifugal pump. <br /> (Figure 3-3) . <br /> 2 . If the first pump fails to hold the <br /> water level in the equalization tank <br /> down, the water level will reach <br /> the second stage of the Kari float <br /> switch which energizes the second pump. <br /> 3 . If both the first and the second pump <br /> fail to hold the wastewater level in <br /> the equalization tank down, the <br />