Wenbro Buyer’s Guide: Water & Diesel Bowsers (500L vs 1000L)

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• Side-by-Side Comparison
• Water Bowsers: 500L or 1000L?
• Diesel Bowsers: 500L or 1000L?
• Frequently Asked Questions
• Products Featured In This Article

Side-by-Side Comparison

	500L Water Bowser	1000L Water Bowser	500L Diesel Bowser	1000L Diesel Bowser
Tank capacity	500L	1000L	500L	1000L
Pump and power	No engine; tap and outlet pipe	6hp Wenbro Petrol Engine, 2″ water pump, 600 litres per minute	12V battery-powered diesel pump, 50 litres per minute	12V battery-powered diesel pump, 50 litres per minute
Dry weight	320kg	320kg	380kg	430kg
Platform	1 200 x 1 600mm	1 200 x 1 800mm	1 200 x 1 600mm	1 200 x 1 800mm
Price (incl. VAT)	R30 800	R50 500	R46 750	R56 000

Choosing between a 500L and a 1000L Bowser comes down to what you’re carrying, how often you can refill and what you’re towing with. Too small and you’ll be refilling more often; too large and you’re towing more weight than the job needs. This guide compares Wenbro’s Water and Diesel Bowsers so you can match the right one to your site.

Wenbro’s range includes four Bowsers across two applications: storing, transporting and dispensing water and diesel. Each comes in 500L and 1000L tank capacities. All are mounted on a road-licenced trailer, and the registration and ownership transfer are handled by Wenbro and included in the price. In this article, we’ll cover each bowser’s uses and benefits and cap it off with a comparison table for easy reference.

Water Bowsers: 500L or 1000L

The difference here isn’t only capacity. We’ll explore the differences and use cases for each below.

500L Water Bowser

The 500L Water Bowser is a 500-litre LLDPE (Linear Low-Density Polyethene) tank on a solid single-axle trailer platform. It does not come with a pumpset or dust-suppression outlet as standard; water is released through a tap and outlet pipe. Buyers can, however, add a pumpset and dust suppression as optional extras.

Key Considerations:

• Low pressure, mostly for providing access to water for hand washing, bucket filling and storing water for dust suppression when compacting
• Hire units are not suitable for storing or dispensing drinking water¹
• Most affordable option in the Wenbro Bowser Range

Great for:

• Supplying water to equipment like High-Pressure Washers on remote sites
• Wetting ground surface for compaction (dust suppression and soil adherence)
• When you need access to a tap, but there is none nearby
• Washing hands and general cleaning
• Smaller projects that don’t need a ton of water at pressure

1000L Water Bowser

The Wenbro 1000L Water Bowser (With 2″ Petrol Powered Water Pump) is a trailer-mounted LLDPE (Linear Low-Density Polyethene) water tank fitted with a petrol-powered 6hp 2-inch Centrifugal Water Pump capable of pumping 600 litres per minute.

Key Considerations:

• The water pump is powered by a 6hp Wenbro Petrol Engine with a recoil pull start and a 3-litre fuel tank, so it doesn’t need external power
• Hire units are not suitable for storing or dispensing drinking water¹
• A rear sprinkler system sprays water across a surface for dust suppression
• The 33m vertical head allows for pumping uphill or into elevated storage tanks

Great for:

• Dust suppression on dry construction sites, gravel roads and earthworks
• Watering compaction layers on road and civil projects
• Supplying water to Concrete Mixers and wash-down areas on remote sites
• Mobile water storage for quick deployment in firefighting and fire risk mitigation on farms and rural properties during dry seasons
• Transferring water between storage points where there’s no permanent water supply
• Off-grid car, equipment and vehicle washing

Which Water Bowser should you choose?

• Choose the 1000L Water Bowser if you need to spread or pump water, or if you want fewer trips back to your water source.
• Choose the 500L Water Bowser if trailer weight or towing capacity is a concern or if road conditions make towing a heavier load dangerous.

Diesel Bowsers: 500L or 1000L

With Wenbro Diesel Bowsers, the choice really is about size, not materials: we do not compromise, using only the strongest materials such as high-grade 2mm mild steel for both the 500L and 1000L storage tanks to ensure strength and longer lifespans, ideal for the harsh conditions of Africa.

Both have the same pump setup: featuring a 3-digit flow meter to track what you dispense and a 12V battery-powered diesel transfer pump delivering up to 50 litres per minute through a 4-metre industrial fuel hose equipped with a standard fuel “gun” to easily dispense diesel directly into your equipment, preventing spills. Both are supplied with a fire extinguisher, spare wheel, padlock and lockable fuel cap.

500L Diesel Bowser

The Wenbro 500L Diesel Bowser is a compact fuel storage, transport and dispensing unit built with a 2mm mild-steel storage tank mounted on a road-licenced, single-axle trailer. Designed for construction sites with height and width limitations, farms and remote project locations.

Key Considerations:

• Less weight and height means the 500L Model handles rough or damaged dirt roads and unpredictable heavily potholed tar roads better.
• Easier to manoeuvre when unhitched from a vehicle.

Great for:

• Storing and dispensing diesel to plant and equipment on smaller construction sites
• Refuelling equipment such as Generators, Compactors and Water Pumps without leaving site
• Remote or rural projects with limited access to fuel stations, refuelling points
• For larger project sites with on-site fuel storage, save time by making fuel distribution simpler
• Farm fuel storage for tractors, irrigation pumps and small plant equipment
• Smaller vehicles with lower towing capacity

1000L Diesel Bowser

The Wenbro 1000L Diesel Bowser is a road-licensed, trailer-mounted fuel storage and dispensing unit for operations like construction sites, farms and remote locations and projects.

Key Considerations:

• Costs just 20% more than the 500L Diesel Bowser for 100% more storage (that’s double the fuel-storage capacity).

Great for:

• Storing and dispensing diesel to plant equipment on active construction sites
• Refuelling Generators, Rollers, Compactors and Water Pumps without leaving site
• Remote projects where a petrol station isn’t accessible
• Farm and smallholding fuel management for tractors, vehicles and irrigation pumps
• Transporting diesel between sites or depots

Which Diesel Bowser Should You Choose?

Since the pump is the same, ask two questions:

1. How much diesel does your operation/site/project use between Bowser refills? A larger tank means fewer trips to refill the Bowser itself. A lighter tank is better suited for smaller projects or where a heavier Bowser would have trouble getting transported. Fuel Efficiency of the towing vehicle is another consideration.
2. What are you towing with? Fully loaded, the 1000L Diesel Bowser is 475kg heavier than the 500L (1000L = 1280kg vs 500L = 805kg). Choose the weight your vehicle can safely and comfortably tow.

Choosing Your Bowser

Pick the Bowser by application first, then by size. For water, the question is whether you need a pump and dust suppression system (1000L Water Bowser) or just a standard “tank and tap” (500L Water Bowser).

For diesel, the pump is the same, so it comes down to how much you need to store, what you’re towing with and the route it must travel.

When you’ve narrowed it down, take a look at the 500L Water Bowser, 1000L Water Bowser, 500L Diesel Bowser and 1000L Diesel Bowser, or browse all Bowser Trailers.

You can buy online with delivery nationwide, or collect from our Pretoria or Polokwane branches.

Not sure which size suits your site or your towing vehicle? Contact Wenbro on 087 073 7777 or info@wenbrohire.co.za and we’ll help you choose the Bowser most suited to your requirements.

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