We have a old Smith and Loveless below grade "can" type duplex raw sewage pump station (20 hp each). The existing pumps are so old and therefore needs replacement. My first thought was to use dry pit close coupled submersible (By Sulzer, Xylem) but can we also consider dry pit sewage pumps that are air cooled? Apart from Hydraulics, piping and electrical which I am familiar with what are the other critical factors that needs to be looked at when considering dry pit sewage pumps in this situation?
Thanks in advance.
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