Volume 5, Issue 5
Published: September 18, 2017
A modern alternative

Traditional lift stations use submersible pumps in a wet well. The pumps are activated by float switches when the water reaches a preset level, and then run at full speed to empty the wet well. A primary issue with submersible pumps in wet wells is clogging with wipes and other flushable materials. The float switches are subject to fouling with fats, oils and grease and may require frequent cleaning to keep them operable. In addition, wet wells occasionally have to be cleaned out, typically with a vacuum truck. Another major issue is hydrogen sulphide gas, which can corrode electrical components, anything made of steel or iron, and even concrete, as well as cause odours that inevitably lead to complaints.

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