Low Pressure sanitary sewer systems are utilized for areas that are beyond the reaches of the City conventional gravity sewer system and not large enough to provide economic justification for a community sewage pump station, or where soil conditions or topography are not suitable for a gravity sewer system. A Low Pressure sanitary sewer system consists of on-site privately owned and operated sewage pumps with discharge pipes connected to a City-owned and operated low pressure sewage force-main. The pumps may be a grinder pump, which grinds the solids present in wastewater to a slurry similar to a kitchen sink garbarator.
The ownership of individual pump system is the property owners and they are responsible for the operation and maintenance, and the replacement of the pump system.
Annual inspection and servicing of the pump system by a qualified service person or company is recommended. The annual cost of electricity for the pump system based on a single typical family is about $30 to $50.