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DIP System® stands for Direct Inline Pumping as used for moving wastewater and debris.
The DIP System® is typically installed in what was formerly a wet well located within a municipal area of dense population. The wastewater comes to the DIP System® via the gravity sewer lines. The wastewater is then pumped by the DIP System® to a waste treatment facility. to allow the cleaned water to be returned to the local environment.

The DIP System® was developed by S.I.D.E. Industrie in France, near Paris, by Stéphane Dumonceaux. S.I.D.E. Industrie developed and patented the DIP System® to address the problems caused when disposable wipes caused wastewater pumps to clog. Based on practical expertise in the field, the development of the DIP System® implemented solutions that were the daily concerns of users and designers. It is assembled and shipped from Manhattan, Kansas to users in the United States and Canada.

Operator and maintenance personnel are protected from the dangers of hydrogen sulfide (H2S) gases, and the odors, and can do any service work in a clean, dry environment.

But, as gravity still works, sewage still flows to some lower point to be collected. These low collection points are called wet wells in cities and in rural areas they are called septic tanks. The rural septic systems use tiles to disperse the “grey water” into the surrounding landscape. The “solids” settle out and this is what is pumped from septic tanks from time to time as sludge.

The municipal wet wells, now called “lift stations,” are usually associated with high density neighborhoods as they collect and retain higher volumes of raw sewage. They are designed to turn on a pump when a certain level is collected. The pump transfers the raw sewage to a treatment plant or to another lift station to be collected and transferred again, ending at a waste treatment plant.

Now, rather than emptying the raw sewage into a river, in the United States, The Clean Water Act requires sewage be treated and meet high standards before being discharged. As wet wells are filled by anything that flushes or is forced into the sewer line, they are notorious for collecting all sorts of trash and debris. Rags, diapers, plastic bottles, cans, grease, oil, dead animals, and if near, prison uniforms, all of which need to be physically removed and hauled away.

These things, other than “normal” waste, clog the pumps and cause maintenance personnel the smelly job of removing the clogged pump, cleaning it and then replacing it. The DIP System® design eliminates the need for wet well trash collection and hauling as it shreds and pumps debris away from the lift station. The DIP System® pumps clean themselves automatically.

The DIP System® is driven by variable speed drives. The DIP System® eliminates the wet well batch storage and pump down of raw sewage. The DIP System® operates continuously and modulates pumping directly from the effluent inlet. The DIP System® absorbs the air/fluid mix which flows in from the gravity lines and gives it the speed it requires to be discharged up to the discharge outlet. The proportion of air transported can reach up to 10% of fluid flow without running the risk of cavitation.

Flow is also maintained by the system, which electronically adapts to constantly changing flow rate and load reduction through the shape of the hydraulic body and the design of its impellers. This operating mode enables solid or fibrous matter to move through the system without causing blockages. Electrical power adjusts in line with the incoming flow. Progressive start-ups and stops eliminate hydraulic surges. If the inlet flow is less than the minimum load, operation is intermittent and, if the flow is zero, the DIP System® shuts down completely until flow resumes. An internal swing check valve provides integrated flow without the need for additional piping systems.

Each Variable Frequency Drive converter is connected to its motor unit and communicates with the other. Speed variation and simplified control levels on the same panel allow regulation in all configurations, including those of complex combined sewage systems.

The DIP System® automatically adapts to the incoming flow, up to the limit of the total flow of the 2 motor maximums, i.e. from 0 to 200% of the nominal flow. The performance is between 2 and 4 times higher than the flow rate achieved by standard pumping in batch mode.

Located upstream from the waste treatment plant, the DIP System® provides constant and regular flow. It avoids fluids arriving in “batches”, usually detrimental to the biomass used for biological treatment. The automatic system management also limits maximum outlet flows.

The DIP System® uses a soft start ramp on start-up and a deceleration ramp before stopping each pumping unit to eliminate valve shocks. During diphasic pumping (liquid + air), water hammer is also be reduced.

The problem of reducing the number of start-ups no longer exists as energy savings can be realized at low flow rates. The delivered power for the motors is automatically adjusted in line with the required flow rates.

OmniDIP® is a SCADA system with remote control and management, and is based on M2M communication dedicated for the DIP System®. It allows remote functions as resetting, remote unclogging and information via secured Internet interface and/or standards for SCADA controllers.

During station renovation the DIP System® adapts to any type of currently available pipework; precise positioning of input/output pipes is no longer required. The discharge head can be positioned at any angle of direction through 360°.

The now dry wet well or dry holding tank becomes an equipment room which can be fitted with lighting, a ladder and other accessories which enable maintenance personnel to carry out their work in clean, dry safety.

The lifting station becomes a straightforward inspection chamber without human danger (no emission of dangerous gases, odors or accumulation of solid matter).