Whilst in Aldi, I saw a poster advertising a pressure washer for sale
a week on Thursday.
I got the impression that this group thought quite highly of the
previous Aldi pressure washers. It was said they were made by Karcher
and they were in Karcher yellow.
BUT... the poster shows a blue bodied pressure washer this time round
and the cost is only £59.99. This seems a bit too cheap to me. Could
it be that this model is not as well spec'ed as the previous ones they
From what I have been able to find via google:
Power 2.1 kW 2.0 kW
Max Pressure* 150 bar 160 bar
Flow (L/h) 450 360
hose length (m) 6 5
Cleaning effect**1.875 1.6
* usual disclaimer about max pressure not being operating pressure
**based on pressure washer faq
The flow seems considerably more on the old model. Notwithstanding the
pressure figures are probably massaged, both have a cleaning effect
Certainly the old model has an induction motor, it's description said
so, but I am unsure about the new model. It does however, come on
wheels, so if it is heavy enough to require wheels perhaps it has an
induction motor and metal parts?
Does anyone know more about the new model? Is it worth getting, or is
it best to wait for the old one to come back (if it ever will?)
Just another uninspiring el cheapo pressure washer TBH. 6 litres/min isn't
much of a flow rate, 5m hose won't get you round a standard car.
£80 gets you an induction motor
(Makita just badge it).
£100 gets you an induction motor from the world leaders (parts easy to get)
Dave - The Medway Handyman
On Thu, 01 Oct 2009 20:39:47 GMT, "The Medway Handyman"
That's a shame, the previous Aldi model was highly thought of. I
wonder why they have produced an inferior model this time?
The old Aldi one was a Karcher with induction motor; it's a shame the
new one isn't.
I recently borrowed a cheap (non-induction) Karcher and cleaned the
patio with it. I had never used a pressure washer before so I was
really impressed how much grime it cleared off. It made me think of
buying my own but having read posts here and on the wiki I knew that
one like I had borrowed had a short life expectancy so I know to look
for a metal pumped, induction powered one. If only I could find one
under £300 ;)
And to add meaning, 20 lpm is what a garden hose on 4-5bar supply with no
nozzle might give you. Rather more than the carwash one...
Sorry for the late reply. That's interesting to know. A lot of (non
uk-diy) people seem to think that pressure washers make your water
meter spin into orbit, but what you are saying is that they take the
same flow of water but increase the pressure, just as their name would
suggest. So they do not use any more water than someone using a hose
on their car/patio/whatever. I should have, but never did, realise
that before. Thanks.
What do you think of Nilfisk models?
They seem to have a much higher spec than Karchers for a cheaper
I have the Nilfisk C120.2-6 CP and it's excellent, it doesn't have an
induction motor but we don't use it so often, the power speed nozzle
(spinning pencil jet) is superb.
Nilfisk are pretty big in pressure washers due to acquisition. They bought
Gerni some years ag, then KEW (both large Danish manufacturers) then WAP
(number 2 in Germany after Karcher).
They have huge resources & access to plenty of technology. KEW were always
ground breakers in design, Gerni & WAP first class engineering. Potent mix.
Good range of products & will probably get better.
Dave - The Medway Handyman
Impossible question. All manufacturers have great machines & terrible
machines over a period of time. Gerni for example had cold water machines
that IMO were the best in the world. Their hot water machines sometimes
left an awful lot to be desired, except one particular model which was a
Like for like I wouldn't expect much difference TBH.
I'd suggest that car valeters are in general unlikely to be in the best
judges. Most I've met are completely clueless oiks who will buy the
cheapest shite they can find & then complain because it isn't 100% reliable
when used 24/7. DIY machines are NOT built to run more than half an hour a
day for example.
The number of 'professional' car valeters I've met in the last 30 years
could be counted on the fingers of one hand - even if you had fingers
Every manufacturer makes several 'ranges' of machine. Typically they will
have a series that are desinged to run two hours a day, a range for four
hours a day & a range for 6+ hours a day.
A car valeter using a cold water pressure washer should expect to pay well
in excess of £500 for a suitable unit, or over £1500 for a hot water unit.
Almost all car valeters use cold water machines, which are simply not
correct for the job.
Kranzle are a manufacturer I have great respect for.
Dave - The Medway Handyman
Thanks, most of these people are proper detailers so they know about
the equipment. They do get the commerical Karchers or Nilfisk but many
of them use Kranzle and are very happy with them.
This is a guide put together by a professional valeter:
This is a guide put together by a complete idiot who knows nothing about
pressure washers. He has simply been brainwashed by Kranzle. Clearly
educated beyond his natural intelligence and has no concept of how to
communicate in the English language.
To comment on his two main points;
The 1400/2800 rpm argument is common. In theory a 1400 rpm machine will
suck water better than a 2800rpm machine due to the larger piston diameter.
In practice it doesn't matter, any 2800 rpm machine will easily suck water
from a 1 metre source, which is far in excess of the requirements of a car
If you needed to suck water from 5 metres it would make a difference.
Older plunger pumps were designed to run at 1400 rpm, modern swash plate or
axial pumps will happily run at 2800 rpm and are far more efficient in terms
of power conversion.
A lower revving motor will, again in theory, last longer and the pump seals
will last longer, but the latter cost far more. In a valeting situation it
simply isn't a consideration.
Valeting is a light duty application. It takes little time to wash a car,
much more time to move it & get the next car in. I doubt the average
valeting machine runs for more that 4 hours a day even on a manic busy car
He clearly has no idea about generators. A 3 kva generator simply will not
run any kind of pressure washer. No chance what so f*cking ever. The start
load will stall the generator engine. You need 5 kva minimum.
He has a point about flow rate.
Other than that - 'nul points'.
Dave - The Medway Handyman
I have a mid-80s Karcher and a far older 2.2kVA generator that washed
tractors for years. Admittedly the generator needed to be warmed up
thoroughly and the governor working properly, and even then it bogged
down on starting the washer, but it did get there. It's not about
power, it's about the generator's ability to cope with the changing
load without losing too much speed, before engine power has increased
to compensate. Mechanical inertia (flywheel mass) and a fast-
responding engine both help.
Our neighbour's generator had even less trouble doing it, despite a
lower rated power - but then that was even older (i.e. more inertia),
and was a diesel (where the governor is often better capable at this
than a petrol governor).
There's also the tale of the Napier Deltic being used as a generator
to drive AM radio transmitters. They replaced a Crossley engine that
needed an enormous flywheel to maintain stable output, otherwise there
was audible variation as it slowed down, whilst the Deltic (probably
the fastest accelerating diesel ever) could simply ride a constant
speed on its governor.
On Thu, 08 Oct 2009 18:40:45 GMT, "The Medway Handyman"
Sorry for the late replies, I've been painting (see other thread). By
now has anyone bought a pressure washer from Aldi and what did you
I have not seen any of the previous Aldi pressure washers but I
believe they were made in Karcher yellow and even said on the box
"made by Karcher for Aldi" and they were induction motors.
It's a shame but like you say, I guess their latest batch have been
made by someone else and built to a certain price.
I'll certainly look at the Screwfix models though.
I know you have an industrial one, what make and spec is that?
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