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Braun feels that minor repairs (i.e.-retrofit) will bring the pumps back to 100%. The <br />retrofit entails installation of new seals that cost $1,200 to $1,400 each and the <br />machining of the housing to recover spec. tolerances. Braun quotes a price of $5,000 <br />for this procedure but recommends instead a grinder in the wet well to eliminate most all <br />bulk material from becoming lodged in the pump. The price of a grinder is $28,000- <br />$31,878.50 in addition to the cost of the retro fitting. This would bring the estimated total <br />price for the project to $33,000-$35,000. <br /> <br />Electrical Pump feels that the pumps should be replaced, or in lieu of that that a grinder <br />should be installed. Electrical Pump recommends the grinder as the most cost effective <br />plan at a cost of $30,161.00. <br /> <br />The 2008 budget, under 730-4823-9100, allows $15,000 for Contingency which may <br />include impeller replacement at (erroneously) Bronson. In fact, staff had intended that <br />money to be directed towards the Groveland lift station. Account 730-4823-5160 under <br />System Maintenance has $50,000 for sewer main and manhole rehabilitation. <br /> <br />Staff feels that the inclusion of a grinder is a necessity. The amount of man hours spent <br />cleaning the pumps significantly takes away time from other projects such as city sewer <br />cleaning, televising, assisting other departments, snow removal, etc. In addition, the <br />constant entering and exiting of a confined space presents a safety risk that would be <br />greatly minimized with the addition of a grinder. <br /> <br />Respectfully submitted, <br />Steve Dazenski <br />Parks / Public Works Supervisor <br /> <br />Attachments: <br /> <br />1. Location Map <br />2. Aerial Image <br />3. E-mail from Steve Dazenski to Greg Lee, dated Feb 27, 2008 <br />4. Photographic documentation of a comparable grinder pump from Stillwater <br />