Many different municipalities have consistent issues with debris clogging pumps at lift stations. The debris can be anything from rags and grease to rubber materials and shoes. If it can get into the system, it can be an issue at the lift station. Many of the calls that operators receive for maintenance at lift stations come from these types of predicaments. Vacuuming the wet well at these stations could make even the most seasoned operator cringe at what’s inside.
Operators need a solution that can be applied on the fly without taking the lift station out of service. One company devised a simple, low-cost solution for the problem. The process is as simple as tapping into one of the existing compressors, adding a control box, valve and piping necessary to deliver an air burst into the system so it can be resolved without even having to be on-site.
The process goes as follows: the equipment will introduce a burst of compressed air at the base of the well, in a dead spot, and simply break up the grease cap. By repeating the burst, at controlled intervals, it will keep the grease cap from reforming. The installation could be on the fly and viewed as a drop-and-roll type of solution. The application can break up the grease cap fast and efficiently, so the pumps can digest the remaining chunks of matter. Many of the operators who have installed this application have seen little to no issue at these stations.
Benefits to this low-tech resolution are the reduction of time invested and probably the most important aspect, the reduction of energy use. These lift stations using less electricity on an average monthly use schedule is key to helping municipalities stay within their rigid budget constraints.
For more information about this technology, you may visit the PHI website at www.phiwater.com.