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PAX Water Technologies <br />A UGSI SOLUTIONS COMPANY <br />January 8, 2018 <br />Attn: Justin Chapel <br />Superintendent of Public Works, City of Redwood City, CA <br />Re: Replacement PAX Mixer — Cambridge Tank 1 <br />Dear Mr. Chapel, <br />We are pleased to provide a proposal for a replacement and upgrade to your PAX PWM300 tank mixer for <br />Redwood City's Cambridge Tank 1. We show your existing PAX mixer as a PWM300, purchased in 2008, <br />with serial number 1007. <br />The PAX Water PWS400 V2 is a submersible active mixing system for potable water storage tanks and <br />reservoirs. When operated correctly, the PAX Water PWM400 V2 mixer can rapidly eliminate thermal <br />stratification, decrease ice formation, rapidly blend and distribute doses of residual disinfectant, and <br />maintain uniform chemical and temperature conditions. Under some conditions, the mixing action can also <br />reduce the rate of residual disinfectant loss and lower volatile disinfection byproduct levels inside the tank <br />when used as part of an in -tank aeration system <br />Installation of the PAX PWM400 V2 mixer is very simple. The utility or contractor can perform a "wet -side" <br />mixer installation while the tank is full by lowering the mixer into the tank access hatch using the optional <br />Long Bail Handle and stainless steel chains. The mixer can also be installed "dry", while the tank is empty. <br />Included in the shipment of the replacement mixer is a return label. Simply reuse the packing material and <br />the Dreorinted oreoaid return label to send the original mixer (PWM300, serial number 1007) back to us. <br />The pricing for the replacement mixer is based on a prompt return of the mixer being replaced. Failure to <br />return the original mixer would result in additional charges for the replacement mixer. <br />A detailed scope of work and firm price for the complete system is listed in Section 1 of this Proposal. <br />Section 3 includes our standard Terms and Conditions. All pricing is based on the scope of work described <br />in Section 1 and the Terms and Conditions in Section 3. <br />The PAX Water line of water mixers offers many advantages, including: <br />Eliminates thermal stratification, short-circuiting and "dead zones" <br />Eliminates chemical stratification and residual loss <br />Lowers surface water temperature and combats biofilm growth <br />Reduces variability in water taste and odor <br />Reduces nitrification risk in chloraminated water systems <br />Lowers rate of disinfection by-product (DBP) formation <br />Delivered and installed quickly, with minimal construction and installation cost <br />Proven track record supported by years of successful operational experience <br />If we can be of any further assistance, please do not hesitate to contact us at service(a)oaxwater.com. <br />Thank you. <br />Monica Clark <br />Pax Water Technologies Inc. <br />cc: Charlie Kanturek, G3 Engineering <br />Lashley Loomis Regional Sales Manager, UGSI Solutions, Inc. <br />Phone: 866-729-6493 Email orders@paxwater.com Web: paxwater.com <br />