Evak Trenchman Heavy Duty Submersible Auto Contractor Site Pump
- Perfect for site drainage
- Complete with Agitator
- Highly resistant to Abrasion
Hand-picked pumps from Tsurumi, Stream, and EVAK, supplied to the Environment Agency, Thames Water, the NHS, and 20,000+ homeowners. Real expertise, next-day UK delivery.
What do you need the pump for?
Pumps are not one-size-fits-all. Pick the category that matches your problem, and we'll narrow it down.
Skip the technical jargon. Pick the situation that matches yours and we'll show you the kit that actually solves it.
Standing water below ground level. You need a submersible that can run continuously and pump down to the floor.
See Pumps for Cellar Flooding
Surface water across a lawn, driveway or patio. Puddle pumps clear right down to 1mm, with no standing water left behind.
See puddle pumps
Trenches, foundations, excavations. Heavy-duty with handles solids, usually 110V site power or petrol-driven.
See site pumps
Foul water, solids, off-mains drainage. Cutter pumps, Grinder Pumps, Solids, built for sewage.
See sewage pumps
Circulation and filtration. Quiet, energy-efficient pumps designed for continuous duty.
See pool pumps
Flood control equipment for managing water before, during and after a flood event.
See flood controlCompare pumps side by side, flow rate, head height, power, and price. Everything you need to choose the right one.
| Model | Best for | Min depth | Max flow | Max head | Solids | Power | Price | |
|---|---|---|---|---|---|---|---|---|
| LSC 1.4STsurumi · Japan | Puddles, Basements | 1mm | 170 L/m | 11 m | 5mm | 230V/110V | £570 | View → |
| Residox 400EVAK · Taiwan | Flood Control | 1mm | 250 L/m | 11 m | 2mm | 230V/110V | £474 | View → |
| AMA Drainer 301KSB · Germany | Grey water, sumps | 70mm | 166 L/m | 6.5 m | 10mm | 230V | £222.60 | View → |
| Hippo 75Evak · Taiwan | Sewage, Drainage | 280mm | 390 L/m | 10 m | 50mm | 230V/110V/400V | £378 | View → |
| HD-15APP · Taiwan | High flow rate, Site pump | - | 830 L/m | 10 m | 9mm | 230V/110V | £828 | View → |
Some problems are simple product purchases. Others involve levels, discharge routes, capacity, flood pathways and liability. Route the customer correctly before they buy the wrong thing.
When floodwater is sitting on your floor or a building site is pooling rainwater, a standard submersible pump can leave an inch or more of water behind. A pu...
Our founder Simon Crowther appeared as Flood Risk Advisor on BBC Rip Off Britain. With UK flood risk up 43%, see our expert pump range for surface water.
Need water pumps delivered to Jersey (Channel Islands), the Republic of Ireland, or Northern Ireland? We can supply and ship a wide range of pumps with typi...
Backed by over 12 years of flood-defence expertise. Carefully selected products that deliver, every time.
Nottingham warehouse, same-day pick on 800+ lines. Order before 2pm Mon–Fri for next-working-day delivery.
Straightforward specs, honest advice, and the right pump for the job.
I could speak to a real person on the phone and she was helpful and informative . The pump arrived in two days in time to be used it was very effective.
Ordered a puddle pump at 3pm. It was with me 10am next day. I was pumping standing flood water out my garden by midday. I forgot to add an item, sent an email, received a phone call immediately, item was added to the delivery. Brilliant friendly service.
Really efficient service. Delivered within 24 hours of placing the order. All products ordered were well packaged and delivered without any hassle.
Still not sure? Our team would be happy to answer your questions.
0115 987 0358The best pump depends on your application and operating conditions. Key factors include the type of water being pumped (clean water, dirty water, sewage or slurry), what the pump is being used for (such as flood control, drainage, dewatering, irrigation or swimming pool circulation), the vertical lift, discharge pipe length, available power supply, and the flow rate required. Our Pump Finder can help you identify suitable options, or our team can assist with product selection if required.
Order before 14:00 Mon–Fri for next-working-day delivery on 1,200+ in-stock products. Larger items (engine-driven pumps, sump stations) ship on a pallet within 2–3 working days.
We want you to buy with confidence. If something isn't right, you have a full 14 days after delivery to start a return, and we'll make the process as simple as possible.
Yes. Call 0115 987 0358 between 9:00 and 17:00 Monday to Friday and our team will be happy to help. You can also use our Pump Finder to narrow down the most appropriate options based on your requirements.
For site-specific advice, such as assessing drainage layouts, pipe runs, inflow rates, pump sizing calculations, or designing a complete pumping solution, we can refer you to our sister company, an engineering consultancy team for a tailored assessment.
Manufacturer warranties are product-specific and vary by brand and model, with some pumps benefiting from warranty periods of up to 3 years. Full warranty details can be found on the relevant product page and on our Warranty Information page.
For more information, please visit: Warranty Information Page.
Manual pumps require you to turn them on and off, and shouldn't be left unattended. Once the water clears they'll overheat. Automatic pumps use a float switch or sensor to start and stop themselves as water rises and falls, so they suit unattended use.