Multiquip 6-Inch Pumps in South Sudan: Technical Specifications, Field Use Cases, and Why This Is the Workhorse of Humanitarian Flood Response

By Specialized Logistics Solutions | March 2026 | View SLS Pump Equipment Range

In South Sudan's most flood-affected states — Jonglei, Unity, and Upper Nile — one piece of equipment appears on nearly every serious humanitarian response asset list. It is not a water purification tablet or a shelter kit. It is a high-capacity diesel trash pump: specifically, a Multiquip 6-inch pump. When the dyke on the western side of Old Fangak broke in August 2025 and submerged the entire town overnight, displacing tens of thousands of people and flooding 20 humanitarian agency offices simultaneously, the immediate operational question was not what to distribute — it was how to remove the water fast enough to restore access for any distribution at all.

South Sudan has experienced severe flooding every year since 2019. The 2025 flood season affected more than 960,600 people across 26 counties in six states, with Jonglei and Unity accounting for over 92% of the total caseload. Over 335,000 people were displaced, 143 health facilities were affected — 44 fully submerged or structurally damaged — and access routes to critical humanitarian corridors were cut for weeks at a time. IOM's 2026 Crisis Response Plan for South Sudan specifically identifies the Bentiu IDP Camp in Unity and the Malakal Protection of Civilians site in Upper Nile as priority areas requiring continuous WASH and flood management capability.

For field logistics managers, UN WASH cluster officers, and procurement teams responsible for maintaining operational continuity through South Sudan's annual flood season, understanding the Multiquip 6-inch pump range is not optional technical knowledge — it is essential operational planning. This article covers the full technical specification of the MQ62TK and MQ600H series, their specific use cases in South Sudan's flooding environments, and how SLS supplies and supports these systems as the authorised Multiquip distributor in East Africa.

Why Multiquip 6-Inch Pump Capacity Is the Operational Standard for South Sudan Flood Response

Pump sizing in flood response is not arbitrary. It is determined by the volume of water, the contamination level, and the urgency of clearance at any given site. In South Sudan's peak flood conditions — where the Nile and its tributaries overflow simultaneously with heavy rainfall, waterlogging soil that never fully drained from the previous season — the volumes involved are enormous. A 2-inch or 3-inch pump that is adequate for a construction site drainage job is operationally useless in a flooded IDP camp of 50,000 people where standpipes, latrines, and health facility access points need to be cleared within hours, not days.

The 6-inch pump size sits at the critical threshold where capacity becomes operationally decisive. A Multiquip MQ62TK moves up to 1,190 gallons per minute — approximately 4,500 litres per minute. The MQ600H series steps that up to 1,600 gallons per minute (6,055 litres/min). At those flow rates, a single pump can clear the standing water from a flooded health facility compound, restore latrine drainage across an IDP camp section, or dewater a submerged road section fast enough to restore truck access before the next rainfall event.

Critically, both models handle solids up to 3 inches (75mm) in diameter — the debris-handling threshold that makes them true trash pumps rather than clean-water dewatering units. In South Sudan's flood conditions, the water being removed is never clean. It carries agricultural debris, latrine overflow, structural material from damaged buildings, and the full contamination load of a community with compromised sanitation. A pump that clogs on 1-inch solids is not a flood response tool in this environment. A pump that handles 3-inch solids reliably, for hours at a time, without mechanical failure, is.

Full Technical Specifications: MQ62TK and MQ600H Series

The following table provides the complete technical specification for the three primary Multiquip 6-inch pump configurations available through SLS. All models are available for procurement from our pre-positioned Juba inventory.

Specification	MQ62TKS (Skid)	MQ62TKT (Trailer)	MQ600H / MQ600HTP
Discharge diameter	6 inches (152mm)	6 inches (152mm)	6 inches (152mm)
Max flow rate	1,190 GPM (4,504 l/min)	1,190 GPM (4,504 l/min)	1,600 GPM (6,055 l/min)
Max head	111 ft (33.8m)	111 ft (33.8m)	150 ft (45.7m)
Solids handling	Up to 3 inches (75mm)	Up to 3 inches (75mm)	Up to 3 inches (75mm)
Engine	Kohler KDW 1404 Tier 4 diesel	Kohler KDW 1404 Tier 4 diesel	HATZ 4H50 Tier IV turbo diesel
Fuel tank	16 GAL (61 litres)	28 GAL (106 litres)	40 GAL (151 litres)
Run time	~15 hours	~15 hours	Extended (larger tank)
Mount	Skid	DOT trailer	Skid or trailer
Impeller material	Ductile cast iron	Ductile cast iron	Ductile cast iron
Seal system	Tungsten/carbide, oil-lubricated	Tungsten/carbide, oil-lubricated	Tungsten/carbide, oil-lubricated

Key engineering features shared across the 6-inch range: the tungsten/carbide oil-lubricated mechanical seal system provides abrasion resistance against the particle-laden water typical of South Sudan flood events; the ductile cast iron impeller and volute assembly is wear-resistant and serviceable in-field; and the wet-priming design means the pump can be deployed immediately without pre-filling the suction line — a critical advantage when teams are responding to a dyke breach or sudden inundation event with no time to prepare equipment.

The MQ62TKT trailer-mounted configuration is the most commonly specified model for South Sudan humanitarian operations due to its mobility — the DOT-certified single-axle trailer can be towed by a standard 4x4 to forward positions before roads deteriorate, and repositioned between operational sites without lifting equipment. The MQ62TKS skid-mounted version is preferred for fixed installations at IDP camp perimeters, pump stations, and dyke maintenance positions. The MQ600H and MQ600HTP (HATZ-powered, up to 1,600 GPM) are the high-capacity option for large-scale operations — major dyke reinforcement, large camp drainage, and airstrip clearance.

Six Field Use Cases Across South Sudan's Flooding Corridor

The following use cases are drawn from the specific operational environments where Multiquip 6-inch pumps are deployed by humanitarian organisations working across South Sudan's most flood-affected areas.

1. IDP Camp Perimeter Drainage — Bentiu and Malakal

The Bentiu IDP Camp in Unity State and the Malakal Protection of Civilians site in Upper Nile are two of South Sudan's largest and most enduring displacement sites, each hosting hundreds of thousands of people in low-lying terrain adjacent to the Nile. When peak flooding arrives between September and December — driven by upstream releases from Uganda's hydroelectric infrastructure and Ethiopian highland rainfall — the perimeter drainage systems at both sites require continuous high-volume pumping to prevent camp inundation. The MQ62TKS skid-mounted unit, positioned at fixed drainage outfall points, operates continuously for up to 15 hours per fuel load, maintaining the water table below the camp perimeter dykes. IOM's 2026 Crisis Response Plan specifically lists clean water and flood protection at Bentiu as a priority requiring immediate funding to prevent service collapse.

2. Health Facility Dewatering — Submerged Clinical Areas

The 2025 flood season damaged or submerged 143 health facilities across South Sudan, with 44 fully inoperable as a result. When a health facility floods, restoring clinical function requires removing water from concrete floors, equipment storage areas, and latrine systems before they can be assessed, cleaned, and reopened. The MQ62TKT trailer model is the standard tool for this application: it can be driven to the facility, connected to a suction hose through a door or window opening, and begin clearing water within minutes of arrival. At 1,190 GPM flow rate, a flooded single-story health post can typically be cleared to a workable water level within one to three hours depending on inundation depth.

3. Emergency Dyke and Berm Reinforcement — Old Fangak and Bor

When the Old Fangak dyke failed in August 2025, the immediate response required both removing water from the submerged town and simultaneously managing water flow during emergency dyke repair. The MQ600H series — at 1,600 GPM and 150 feet of maximum head — is the specified pump for this application, providing the volume and pressure needed to manage flow around active construction. IOM and the South Sudan Ministry of Water Resources and Irrigation signed an agreement in October 2025 specifically to bolster flood defences in Bor Town, a site where the 6-inch high-capacity pump is central to the reinforcement methodology.

4. Airstrip Clearance — Ganyiel and Remote Operational Access

South Sudan's flooded-season logistics depend critically on airstrip access. When road routes are cut, airstrips become the only supply line for humanitarian cargo and medical evacuations. The Ganyiel airstrip in Panyijiar, Unity State, was repeatedly inundated and partially reclaimed during 2025, with youth-led dyke construction on one occasion restoring just enough access for limited humanitarian deliveries. A positioned 6-inch pump at a strategic airstrip can prevent or rapidly reverse inundation, maintaining the logistics lifeline that air access represents. The trailer-mounted MQ62TKT is particularly suited here — it can be air-freighted to a remote airstrip in a cargo aircraft and immediately begin operations upon landing.

5. Contaminated Flood Zone Clearance — Latrine Overflow and Borehole Protection

When latrines overflow during flooding, they contaminate the surrounding area and any water sources within proximity. This is the primary pathway for cholera transmission in flood-affected IDP camps — the mechanism that links the annual flood season to the ongoing cholera outbreak that has recorded 97,801 cases and 1,608 deaths since September 2024. The MQ62TK's ability to handle 3-inch solids makes it the appropriate pump for clearing heavily contaminated water from latrine surrounds, enabling sanitation teams to assess, repair, and rehabilitate latrine facilities before disease transmission escalates. No pump with smaller solid-handling capacity can perform this function reliably.

6. Road Section Dewatering — Restoring Humanitarian Corridor Access

OCHA's 2025 flood reporting consistently identifies road impassability as the primary constraint on humanitarian access across Unity, Upper Nile, and Jonglei states. When a road section floods to a depth that prevents truck passage, a positioned pump can clear standing water from the critical section quickly enough to restore vehicle access for a supply convoy. The MQ62TKT's trailer mobility makes it deployable ahead of a convoy, clearing sections progressively along a supply route. This application is particularly critical on the Juba–Bor and Malakal river access corridors where narrow seasonal windows determine whether supply reaches forward positions.

Why Procurement Timing and Local Supply Matters

Every one of the six use cases above shares a common procurement requirement: the pump must be physically present at the operational site before the flood event occurs, not ordered in response to it. A Multiquip 6-inch pump sourced from an international supplier takes six to twelve weeks for delivery to South Sudan, depending on shipping route and customs processing. The South Sudan flood season in Jonglei and Unity typically becomes operationally critical between August and October — meaning procurement must be completed and units delivered by July at the latest. For organisations that miss that window, the only option is emergency air freight at three to five times the standard unit cost, if stock is available at all.

SLS maintains pre-positioned Multiquip 6-inch pump inventory in Juba as the authorised regional distributor. Our Juba warehouse at Unit 5, Da Vinci Lodge holds standing stock across the MQ62TKS, MQ62TKT, and MQ600H product range, enabling emergency procurement fulfilment within days rather than weeks. We provide:

•        Pre-positioned stock in Juba for immediate order fulfilment

•        Technical documentation, parts availability, and operator training support

•        Delivery coordination to forward positions including Bentiu, Malakal, and Bor

•        Combined procurement packages pairing pump units with WASH supplies, water storage, and NFIs for complete flood response bundles

For a complete overview of our pump range — including Aussie Pumps submersible and high-pressure models for applications beyond the scope of the MQ62TK and MQ600H — visit our pump equipment page. For the broader flood response procurement picture, including water purification, water storage, and NFIs, see our flood season procurement checklist and our guide to WASH operations during active conflict.

Order Before the Rains Do It For You

South Sudan's 2026 rainy season will follow the same pattern as every preceding year: above-average rainfall forecast between July and November, peak inundation September to December, driven by upstream releases from Uganda and Ethiopia. The states with the most severe needs — Unity, Jonglei, and Upper Nile — are the same states that face the earliest and most complete road access loss. The Multiquip 6-inch pump is not a seasonal luxury. It is a core infrastructure requirement for any humanitarian organisation maintaining operational continuity in these environments.

SLS has stock available now. Contact our team today for current availability, a technical specification discussion matched to your operational requirements, and a delivery timeline to your site in Juba, Bentiu, Malakal, Bor, or Kampala. Our full pump equipment range is detailed on our website, and our team includes technical support personnel who have direct experience with Multiquip deployment in South Sudan's field conditions.

About Specialized Logistics Solutions

SLS is a Juba-based humanitarian logistics and WASH supplier with 35 years of operational experience across East and Central Africa. We are the authorised regional distributor for Multiquip and Aussie Pumps, with pre-positioned pump inventory in Juba and Kampala available for emergency procurement. We also supply Butyl Products UK water storage systems, Hallgruppen modular warehouses, P&G Purifier of Water, Aquatabs, MREs, and NFIs. Trusted by IOM, UNMISS, and WHO across multiple crisis cycles. View our full pump range →

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