EVAK Trenchman range
EVAK Trenchman 750 230v
- Established 1975
- Trusted by thousands of customers
The EVAK Trenchman 750 (230V) is the mid-range agitator-equipped contractor drainage pump in the Trenchman family – delivering meaningfully more flow and head than the 400 while remaining portable at 16kg. A sintered SMF5030 agitator keeps sediment in suspension while pumping, so the Trenchman keeps working where a conventional drainage pump would clog. Auto (float switch) as standard, manual on request.
- Sintered SMF5030 agitator – keeps sediment in suspension
- Hytrel-coated steel vortex impeller – abrasion resistant
- FC200 cast iron pump casing, ADC12 aluminium motor housing
- 230V, 5.4A – plugs into standard UK mains, optional 3″ discharge
More about this product
Overview
The EVAK Trenchman 750 (230V) is the mid-range submersible contractor drainage pump in the Trenchman family – designed for arduous trench dewatering and site drainage in silty, gritty water. A sintered SMF5030 agitator sits below the impeller and keeps sediment in suspension while pumping – so the Trenchman keeps moving water where a conventional drainage pump would settle solids and choke. The 230V version plugs into standard UK mains, making it well suited to permanent sump installations, cellar drainage and unattended dewatering where more flow and head than the Trenchman 400 are required. Auto operation with float switch is fitted as standard; manual variants are available on request. An optional 3″ discharge is also available on the 230V variant.
When to Choose the 750 Over the 400
The 750 delivers meaningfully more flow and head than the 400, against a modest weight increase (16kg vs 13.5kg). Choose the 750 where the 400’s 220 l/min and 12m head aren’t enough – typically larger sites, longer hose runs, or where the pump needs to lift water further.
For smaller sumps and lighter duties, the Trenchman 400 is usually sufficient.
Trenchman or Drainox?
The Trenchman and Drainox are both EVAK contractor site drainage pumps, sharing the same 2″ discharge and rugged build. The distinction is the agitator:
Key Features
Performance at a Glance
Technical Specification
| Voltage | 230V single-phase |
| Motor rating | 750W (1HP) |
| Current draw | 5.4A |
| Operation | Auto (float switch) as standard, manual on request |
| Max flow | 350 litres/min |
| Max head | 15 metres |
| Discharge | 2″ BSP female (optional 3″ available) |
| Impeller | Hytrel-coated steel vortex, abrasion resistant |
| Agitator | SMF5030 sintered agitator – keeps solids in suspension |
| Seal | Double mechanical seal in oil bath – upper CA/CE, lower SIC/SIC |
| Motor protection | Oil-free motor, auto-reset thermal protector |
| Cable | 10m H07RN-F |
| Materials | Pump casing: FC200 cast iron; motor housing/cover: ADC12 aluminium alloy; strainer: PVC; handle: Nylon 6; shaft: SUS 410 |
| Weight | 16kg |
| Dimensions (A × B × C) | 279 × 227 × 377mm |
Applications
Larger permanent sump installations, cellar and basement dewatering with high inflow rates, commercial site drainage in silty or gritty water, and any site where a conventional drainage pump would clog with sediment and the Trenchman 400 lacks capacity. The 230V version plugs into standard UK mains, making it well suited to permanent unattended installations rather than site-safety 110V transformer duties. Where higher flow is needed, the optional 3″ discharge maximises throughput.
FAQs
The sintered SMF5030 agitator sits below the impeller and mechanically disturbs settled sediment at the base of the sump, keeping silt and small solids suspended in the water column so they get pumped away rather than accumulating and blocking the pump inlet.
Yes – the 230V model plugs straight into standard UK mains, making it suited to permanent installations in cellars, basements and sumps where a socket is available.
The 3″ discharge option (available on 230V 750 and 1500 variants) reduces flow restriction compared to the standard 2″ outlet, allowing the pump to deliver its maximum flow rate more effectively over long hose runs. Specify at order if required.
The Trenchman 1500 delivers around 700 l/min and 20m head – the appropriate choice for heavy-duty continuous dewatering or larger commercial installations. The 1500 is also 230V single-phase and shares the same optional 3″ discharge availability.
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the EVAK Trenchman 750 230v. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a submersible pump?
A submersible pump is designed to operate fully submerged in the liquid it is moving. The motor is sealed inside the pump body and cooled by the surrounding water. Submersibles are used for drainage, sewage, septic tanks, deep wells and boreholes, and for raising water from sumps, cellars and floodwater. Many stocked at Anglian Pumping handle solids in suspension.
Can submersible pumps handle solids and sewage?
Yes – some submersibles are designed for clean water only, others handle solids up to 50 mm or full raw sewage. Anglian Pumping stocks ABS, BBC, Flygt and T-T Submersibles ranges that include vortex, single channel and grinder impellers for different solids handling requirements. Always match the pump to the maximum solid size and the type of effluent it will see.
When should I use a submersible pump instead of a surface pump?
Use a submersible when the water level is more than around 8 metres below the pump installation point – surface pumps cannot self-prime beyond that depth. Submersibles are also better when the liquid contains solids, when noise must be minimised, or when the pump needs to operate in confined spaces such as sumps and chambers where a surface pump would not fit.