COUNTERVAC A Break Trough in Materials Transfer
Unique Technology

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Until now, pumps for environmental remediation and oil spill recovery have not effectively addressed the recovery and transfer of high viscosity or debris-laden materials. This is particularly so if the situation calls for high transfer rates or long discharges to a temporary, fixed, or mobile storage container. Conventional pumps are limited to high speed pick up and transfer low to medium viscosity fluids with small debris particles. But if your application goes beyond these parameters, the CounterVac line represents the breakthrough solution you need.

Flow Through Design

The CounterVac line of systems is the result of ETI's decade of dedication to pumps that transfer fragile and hazardous materials in fluids. The underlying principles of CounterVac systems are vacuum and air pressure for suction and discharge, and the complete absence of impellers or other impediments to free and smooth passage of material. Impeller less design is critical, because in addition to limiting viscosity and debris passage, impellers and screws are subject to extreme wear. CounterVac pressure and discharge cycles, single tank systems. CounterVac pressure and discharge cycles, twin tank systems.


High Viscosities

Our customers report that CounterVac systems are able to recover and transfer materials with the viscosity of grease, with no serious performance degradation. In water, the solids concentration can be as much as 70 percent.


Long or High Discharges

Depending on discharge lengths and heights required, the air pressure discharge can be custom configured. ETI systems have proven their ability to discharge continuously with total dynamic heads (TDH) of 80 feet in standard configuration.


On The Ground, Too

Vacuum suction allows for CounterVac deployment on the ground as well as at sea or ponds. The CounterVac can operate on pool, puddles, and ditches, on beach or yard clean-up, and run dry periodically without losing prime. This represents a major advantage over many available pumping alternatives.


Avoids Emulsification

Allows Water/Material Separation Impeller and positive displacement pumps are well known for agitation and emulsification, which are particularly undesirable in industrial waste recovery. When subjected to impellers or agitation, hazardous waste becomes more difficult to separate from water. With ETI's filtration accessories, the CounterVac system improves the practicality of on-site material/water separation.


Multiple Suction and Discharge Points

The versatility of the CounterVac line is unmatched. The system can accommodate three suction lines working in parallel, and the suction hose and nozzle diameters can range from 2 to 10 inches, depending on your application. The discharge can also be manifolded.


Accessories ETI

Supplies a range of suction and discharge hoses, nozzles, piping, and dewatering systems. Our total solutions philosophy makes the combination of accessories al most limitless, and includes custom accessories to fit your unique requirements. CounterVac continuous flow twin systems slowing discharge manifold. Optional filters are available for attachment to discharge.


Working Applications

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Marine Oil Spill Recovery - CounterVac systems have been deployed by leading coastal response organizations. The highest profile use of CounterVac systems to date is the Exxon Valdez clean-up. After the first week of the spill, through exposure to weather on the open seas, the oil became heavily emulsifies, as well as viscous and debris-laden. From then until the end of the clean-up operation, ETI's vacuum/pressure systems were among the only effective transfer solutions. In contrast, most other pumps failed after the first week. ETI is now developing complete system packages with leading skimmer and weir boom manufacturers to provide high capacity tier-one skimming systems, and is also packaging systems for near shore spill recovery.


Industrial and Municipal Wastes Recovery - Heavy caustic sludges, bunker wastes, abrasives, dirt, gravel, rocks, and large solids are frequent by-products of industrial and municipal processes, and present unique recovery and transfer challenges. CounterVac's ability to transfer viscous fluids, and high concentrations of abrasives or large solids, overcomes the limitations of many transfer alternatives. The flexibility of the CounterVac system also offers a major cost benefit to service providers. One example: While large-scale routine or emergency clean-ups can exceed the capacity of a single vacuum truck, a compact, trailer-mounted unit can pick up and discharge (with optional primary dewatering) into low-cost transport trucks or temporary holding tanks. This represents a more productive use of assets than the deployment of multiple vacuum trucks. CounterVac pumps are also replacing expensive vacuum trucks in applications involving the transfer of oil field drilling mud. CounterVac systems not only pump faster, but as with the above example, they stay on site, allowing materials transfer to be handled with less-expensive transport vehicles. CounterVac has environmental remediation capability. Shown here in use at the Ketchikan Pulp Company in Ketchikan, Alaska, the CounterVac 3325 pumping heavy bunker oil and accumulated solids from a one-million gallon tank. The CounterVac 3315 is used for emergency oil spill recovery in the Columbia River system. CounterVac has system models for a wide range of pumping capacities.


EXXON Valdez Spill Response Officials Working  With ETI Recovery Equipment Had This to Say:

"The vacuum skimming capability was found to be extremely effective with thick emulsified oil that existed following the first week of the spill... the systems were found most effective when suction end was potted down to 3-3" outlets. Uses included offload of MARCO skimmer pumps, offload of bladder tanks, and recovery of oil over the bow ramp of an LCM from a U-configured moving containment boom . . . all our operators were very satisfied with the operation and effectiveness of the systems."


Barry Eldridge, Operations Response Coordinator, CIRO  (now CISPRI-Cook Inlet Spill Prevention & Response)

"When everything else quits, these units keep on pumping. I would venture to say, they'd even pump grease."

Corky Yeager, Spill Technician, CISPRI



The CounterVac line covers most situations from small scale clean-up of industrial spills to full-blown marine oil spill recovery. Starting with the smallest single tank pump (rated discharge of 100 US gpm) up to the largest standard CounterVac twin system (continuous flow of 950 US gpm). All CounterVac units can be custom configured to produce higher discharge rates, and also to accommodate larger total dynamic heads than the 20 feet we use for discharge performance ratings. CounterVac automated control panel provides simple operation and remote control pendant.