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<br /> <br />Municipal -#;( Industrial -#;( Commercial <br /> <br />9245 247'> street W. <br />Lakeville, MN 55044 <br />Office: (952) 469-1422 <br />Fax: (952) 469-5246 <br />northstarpumpservice.com <br /> <br />NORTH STAR PUMP SERVICE <br /> <br />CIty of CentelVille <br /> <br />March 11, 2009 <br /> <br />1880 Main St. <br /> <br />CentelVille, MN 55038-9794 <br /> <br />Fax: 651-429-8629 <br /> <br />Att: Paul Pal_ <br /> <br />Re: Sanitary Lift Station #1 <br /> <br />Paul, <br /> <br />The following proposalls for Uft Station III that has had many plugging Issues for a extended <br />period of time, our primary issue is the single phase power supply does not have enough start torque for <br />your grinder pumps to overcome a partially chewed up rag in the. pump cutters when it's called for to <br />run another cycle. Our recommendation Is to change our motor starters/single phase components over <br />to VFD Inverters, which allows us to supply three phase power to the submersible pumps from the <br />existing single phase power supply, currently the existing pumps are single phase only and would <br />require a costly rewind of the motors. It would be the most effective if changed out tile pumps with <br />new units. Our quotation is as follows WIth vortex impellers on our pumps; <br /> <br />Lift Station III <br /> <br />(2) Zoeller EX6294 3" discharge, 23OV/3ph., 50' power cord, 5.5. lifting handle, including 3" <br />discharge base elbows with guide system, slide brackets, 3" discharge piping, 3" check valves, 3" <br />gate valves, adaptor companion flange to 4" forcemain, and Installation of listed equipment <br />travel and mileage,start-up, and testing. <br /> <br />(2) AC Tech SM230S VFD power inverters designed for 230/1ph Input to 230/3ph output <br />specifically for 3hp motors, with Jog reference. Includes Installation of drives Into existing <br />control panel and all necessary wiring of supervisory circuits. <br /> <br />TotallnstaHed Price $14.717.00 (not Indudlllll tax) <br /> <br />Please let know if know you have any questions or wish to discuss further details. <br /> <br /> <br />Pump Sales, Installation & Repair "* Control Panel Sales & Repair "* Valve & Pipe Repairs <br />Rental Pumps "* Bypass Pumps."* Periodic MaIntenance Inspections <br />Bob Crooks (612) 597-7373 "* Mike Riippa (612) 597.2284 "* Carl Hlrt (651) 398-1049 <br />RWlS Madden (612) 597-2269 "* Kent Lehmann (612) 382-3717 "* AI Keuler (612) 597-l1685 <br />