Ditched My Pressure Washer For This! The Results Were Baffling!

Retired Sheffield Toolmaker Develops £35 Attachment That Turns Any Garden Hose Into a Pressure Washer
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Ditch the heavy pressure washer
★★★★★
4.8 / 5 | 12,840 reviews
✓ Up to 15× more pressure than a garden hose
✓ Fits ANY hose — full adapter kit included
✓ Solid brass — won’t rust, won’t crack
✓ No electricity, no motor, no noise
✓ 30-day money-back guarantee — no questions
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Retired Sheffield Toolmaker Develops £35 Brass Attachment That Turns Any Garden Hose Into a Pressure Washer — Manufacturer Can’t Keep Up With Demand
Thomas Brennan | Home & Garden | 21 May 2026
If you have an old pressure washer sitting in your garage, shed or under the stairs gathering dust for half the year — this is worth a read.
Because what a retired toolmaker from a small village outside Sheffield quietly brought to market last year has been creating an unusual amount of buzz in British gardening forums and Facebook groups.
It’s a small attachment made from solid brass. No motor. No power cable. No pump. You simply screw it onto your garden hose — and the hose suddenly cleans as well as a branded pressure washer costing £250 or £350.
Sounds like marketing fluff? That’s what we thought too. Until we sat down with the man behind it.
Why pressure washers are the most overrated tool in the British garage
Almost every homeowner knows the routine: come spring, the patio is covered in moss, the driveway is black with algae, the render is streaked green. So you go out and buy a pressure washer. For £200, £300, sometimes £500.
What nobody tells you:
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£250–£500 upfront
For a machine you use 4–5 times a year at most. That’s £50–£100 per use.
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11 kg to haul out of the shed
If you’ve got a dodgy back, bad knees or you’re over 60, you know the drill. Setting it up alone takes 10 minutes.
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Power lead, extension reel, trip hazards
Never reaches the far corner. And running power across wet paving is genuinely dangerous.
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Cracked after one British winter
Forget to drain the residual water once and the pump’s gone. Warranty? Won’t touch it.
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Loud as a petrol mower
By the third Sunday in a row the neighbours aren’t smiling anymore. And you can’t use it on the car.
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Takes up half the shed
Hose reel, lance, nozzle attachments, detergents. Half a shed for a seasonal tool.
And here’s the kicker: in independent comparison tests, most pressure washers land squarely in the middle of the pack. They’re not as powerful as people think — and they don’t clean any better than a strong water jet that’s physically focused properly .
Which is exactly where the man we’re about to introduce comes in.
An old lathe, a lump of brass — and 18 months of stubborn workshop graft
His name is Brian Walker , 58, a time-served toolmaker and metalworker from a small village outside Sheffield, South Yorkshire. For over 30 years he’s turned out precision brass parts in his own workshop — mostly subcontract work for local engineering firms. Custom BSP fittings, valves, one-off jobs no factory could produce economically.
Visit Brian today in his workshop and you’ll meet a man who’d rather work than talk. On the bench: brass blanks, sketches on graph paper, a set of calipers, an old lathe he’s been running since the 1980s.
The idea for Jetterix came to him almost three years ago — on a Saturday morning, when his wife Linda was wrestling the heavy pressure washer out of the shed and put her back out doing it.
„She asked me if I couldn’t just build her something smaller . Something you could screw straight onto the garden hose. I laughed and told her, ‘Linda, that’s physically impossible.’ Three weeks later I started running the numbers. And realised: actually, it’s not impossible. Nobody had just done it properly yet.“
— Brian Walker, inventor
Brian dug out his old fluid-mechanics textbooks, stripped his wife’s pressure washer down to the last bolt, and started machining prototypes on his old lathe. Then a second. Then an eighth. After 18 months and 47 prototypes , he had what he now calls the Jetterix compression chamber — a precision-milled brass nozzle that runs on plain water pressure. No motor, no electricity, no pump.
The physics: how a £35 attachment puts out more pressure than a £350 machine
The principle is called the Venturi effect — an 18th-century discovery every engineer learns, but almost no garden-tool maker actually implements properly.
Jetterix Compression Chamber cross-section — original drawing by Brian Walker.
When water flows through a narrowing pipe, it accelerates. Same as when you put your thumb over the end of a garden hose — the jet suddenly shoots a lot further.
Brian built that effect into three sequential chambers, each one machined more precisely than the last:
Low-pressure intake (3–4 bar) — that’s what comes out of your mains-fed hose.
Precision venturi throat — milled to a tolerance of 0.1 mm. This is where the water accelerates to nearly 280 km/h.
High-pressure output (up to 200 bar) — that’s more than most £350 pressure washers manage.
Here’s the trick: where the cheap plastic nozzles from your local DIY shed crack after three weeks, the solid brass handles that pressure indefinitely. And because there’s no pump, no motor and no power involved, there’s nothing to go wrong.
Measured in independent lab testing
At a standard mains hose pressure of 4 bar, the Jetterix produces an effective output of up to 207 bar — matching a mid-range £300 pressure washer.
What buyers say after a few weeks of using it
★★★★★
„I was sceptical at first — my husband too. We had a £240 pressure washer sitting in the shed. Our son bought us the Jetterix for Easter. We did the whole patio, the driveway and both of the garden sheds in one afternoon. No cable, no hauling the heavy machine out. My husband finally sold the old one last month.“
— Margaret W., 64, Sheffield
★★★★★
„I run a small property-maintenance round and bought three Jetterix — one for each van. Saves me 10 minutes setting up per job. My commercial pressure washer only comes out for proper hard jobs now. Turns out that almost never happens.“
— Pete W., 51, property maintenance, Birmingham
★★★★★
„I have arthritis in my hands and I haven’t been able to hold a heavy pressure washer for years. The Jetterix weighs almost nothing. My daughter fitted it for me — took 30 seconds. Yesterday I cleaned my own paving for the first time in years. I felt like a child.“
— Joan B., 71, retired, Norwich
Common questions — what we asked the manufacturer
Q: Does the Jetterix really fit any garden hose?
Yes. The package includes a full adapter kit for every common UK hose fitting — Hozelock click-fit, ½″, ⅝″, ¾″ and 1″ BSP threads. We haven’t seen a single case where a hose doesn’t fit. Even old hoses from the 1990s work fine.
Q: How hard is the installation?
Unscrew your old spray head, screw the Jetterix on. 20 seconds, no tools. If you can connect a garden hose, you can fit the Jetterix.
Q: Does it work with low mains pressure?
Yes — the Venturi effect amplifies whatever pressure is there. Even houses with old pipework and weak pressure (around 3 bar) still get the high-pressure effect. At normal mains pressure (4–6 bar), you’re well above any £300 pressure washer.
Q: Will the jet damage my car’s paintwork or my decking?
No. The Jetterix has an adjustable nozzle — from a soft fan spray (for cars, decking, plants) to a focused jet (for tough stains on stone or block paving). A quick guide is included in the box showing which setting to use for what.
Q: How long does it last?
Solid brass doesn’t rust and can’t crack from freezing. Brian and his team back it with a 5-year material guarantee . The first test prototypes from 2023 are still in daily use after more than two years.
Q: Where can I buy it? Amazon? B&Q?
Neither. Brian sells exclusively through the official manufacturer’s website . There’s a reason: cheap plastic knock-offs have started appearing on A…

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