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Water Blasters

High-pressure water blasters for home, farm, fleet maintenance, and commercial cleaning across New Zealand. The Trade Roots water blaster range covers Powerbuilt petrol-powered models from 2,500 to 3,100 PSI — serious cleaning pressure for concrete, vehicles, equipment, and heavy grime without needing a mains power connection.

Petrol water blasters go where electric models can't — out on the farm, on a job site, anywhere mains power isn't available or a long extension cord would be impractical. At 2,500-3,100 PSI, these units strip years of buildup off concrete, blast heavy grease off workshop floors, and clean agricultural equipment properly rather than just rinsing it.

Each model comes with wand, lance, and spray nozzle as standard. Replacement parts are available — these are built for long-term serviceability, not one-season use. Used by farmers, fleet operators, concrete contractors, and tradespeople across New Zealand. Fast delivery from Trade Roots.

Frequently Asked Questions

Is a water blaster the same as a pressure washer?
Yes. Water blaster is the New Zealand name, pressure washer is what the rest of the world calls it. Same machine: a pump driven by a petrol engine or electric motor that pushes water through a narrow nozzle at high pressure.
What PSI water blaster do I need?
1,500 to 2,000 PSI for cars, boats and outdoor furniture. 2,500 PSI for decks, fences, driveways and house washing. 3,000 PSI and up for stripping paint, cleaning farm machinery and heavy concrete. Flow matters as much as pressure, so look at the litres per minute too, more flow rinses faster.
Petrol or electric water blaster?
Petrol for driveways, farm sheds, boats and anywhere without a power point. They are more powerful and are not tethered to a cord. Electric for cars, patios and small decks, they are quieter, lighter and need no fuel. The petrol Powerbuilt units here run 2,500 and 3,100 PSI.
What is the most powerful water blaster for home use?
A 3,000 PSI class petrol unit with around 9 litres a minute, like the PBW3100 at $1,259. Beyond that you are into commercial machines that need a trailer and a proper water supply. For most houses the 2,500 PSI PBW2500 at $945 is enough.
Is it cheaper to hire or buy a water blaster?
Hire runs $80 to $150 a day for a petrol unit. If you blast the driveway, deck and house once a year, hire. If you own a boat, a farm, rental properties or a ute that lives on gravel, a $945 machine pays for itself in two or three seasons.
Can a water blaster run from a tank or stream?
Most pumps need positive pressure from a tap or a raised tank. Some petrol units can draw from a tank with a suction hose and filter if the lift is under a metre. Check the product page, and never run the pump dry.

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