Wet wells are a frequent source of concern for most wastewater collection systems. Systems rely on lift or pump stations to transport collected wastewater to a treatment plant. Lift or pump stations typically include two to three pumps for redundancy that require periodic inspection and maintenance. More often than not, the facility may only have one operable pump. Oftentimes, the water elevation in a wet well cannot be lowered in high-flow conditions such as heavy rain periods or during tourist seasons, with only one operating pump.
Poorly maintained and operated lift stations can increase the risk of a sanitary sewer overflow (SSO). They can accumulate a lot of sand and grit via I & I, reducing the capacity of the wet well. The more material there is, the more frequent the pumps must start and stop due to reduced cycle times. When material accumulates in the wet well and the lift station relies on only one working pump, the risk of SSO is increased.
Performing maintenance on wet wells is a problem worth solving in order to reduce pump run time and energy costs and prevent debris and material from accumulating and creating new issues downstream. Access and confined space entry are also challenges associated with inspecting and maintaining lift stations that add to the complexity of getting the job done.
With these challenges, is there a way to restore wet well capacity easily and safely? We believe there is. USST has developed a new solution to restore the capacity of wet wells while they remain in full operation. We are equipped with all the tools needed on our Combination3® Truck using our unique GritGone ProcessSM to get the job done safely and efficiently. Our 49-foot reach allows us to solve most access issues, our jetter allows us to clean the structure, our vacuum removes the material on top (such as fats, oils and greases), and our downhole pump ability allows us to remove sand from the wet well while the lift or pump station remains in full operation.
Our ability to quickly switch between vacuuming and downhole pumping on the spot significantly increases our production rate by having the right tool for the job “on call.” The typical vacuum truck must wait for a low-flow period; this is not an issue for USST. Finally, our GritGone ProcessSM generates paint-filter dry sand, ready for disposal.
The USST crew complies with OSHA confined space regulations maintaining proper ventilation, measuring atmospheric conditions and receiving all required health and safety training. Our team completes more than 40-hours of position-specific training with an experienced field supervisor, including space safety and awareness, fall protection, first aid training and more.
We believe restoring the design capacity of your wet well is a serious job and an important step towards reducing the risk of SSO. Our goal is to get the job done in the safest and most efficient way possible. Contact one of our qualified representatives to learn more about our wet well cleaning and inspecting capabilities at (844) 765-7866.