What is a Dirt Killer | Dirt Blaster Lance?


Firstly, there are copious terminologies for the specified lance: Dirt Killer Nozzle, Dirt Killer Lance, Dirt Blaster Lance or just “the one that’s more powerful!” – the list goes on. You are aware of the ‘bog-standard’ high-pressure nozzle which comes as standard for your machine, but what is a Dirt Killer Lance and what does it achieve?


Whether it’s Karcher, Kranzle or Dirt Driver etc, each manufacturer all use their own phrase for their powerful nozzle attachments – hence why there are so many choices of words. However, a Dirt Killer attachment is designed to cut through tough grease, grime and soil using technology which applies a narrower passage for the water outlet. Therefore, applying more pressure to the water as the Water Flow has not been reduced meaning your machine continues attempting to push water at the same pace through a smaller hole.

What makes these lance attachments or alternatives so special is that the advanced technology creates a spinning mechanism. As you can imagine, spraying water from a smaller hole channelling through until it hits the ground means that it has more pressure but it is still a smaller spraying area. With advanced technology, the powerful narrow nozzle now spins to cover more surface area with every stride yet keeping its insane pressure.

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Kranzle K 7/122 TS Automatic (Total-Stop Auto) Review


Excellent, Compact, Dirt Killing Machine!


Operating Pressure (bar/MPa) : 30-120 / 3-12

Current Type (Ph/V/Hz) : 1/240/50

Flow Rate (L/Hr) : 420

Power Rating (kW) : 1

Power Cable (M) : 5

Dimensions (L x W x H) (mm) : 440 x 200 x 330



The Kranzle K 7/122 TS Pressure Washer may not look like much, but believe us when we say it Packs-a-Punch! Many people doubt the cleaning result of this compact machine because it looks like it would be used domestically. However, the performance and pressure are beyond any domestic machine; with the ability to upgrade some components for extra performance, e.g: Turbo Lance. That is why, overall, this machine is used worldwide for a lot of valeters and other industries who struggle for space within their workshop but who also need effective cleaning execution.

Aqua Blast Systems will only provide machines in which we believe-in ourselves, we refuse to sell ‘rubbish’. We provide a warranty with our machine services to back-up our confidence in the Pressure Washers we deal with.

The Kranzle K | HD 7/122 Total Stop machine comes with multiple functions to assist the operator in creating maximum cleaning ability. As mentioned above, the minute, compact design generates accessibility to narrow areas or locations of which there is not a lot of room to manoeuvre. Another great feature is transporting of the machine, weighing a measly 22kg, the 7/122 TS does not apply strain to an operator when required to transport around site. To further support this feature, Kranzle integrated a large practical carrying handle.

Quality is at the heart of Kranzle machines, with their heavy-duty (1,400RPM) 4-pole motor attached, which offers quiet – almost silent – operating sound levels. Still also providing maximum life expectancy for the industrial motor. To promote the long-lasting life expectancy, the Total Stop (TS) version works parallel to this feature by automatically switching itself off after periods of non-usage. This protects the motor and pump because the additional pressure switch prevents the motor from running when you release the trigger gun, reducing seal wear if the machine is used intermittently yet left switched on for long periods.

By now I would expect you to believe us when we say this machine is far from domestic use. Still don’t? The indicated machine offers a pressure regulation switch, which is fully adjustable controls that allow operating pressures to be adapted to suit any cleaning task. I bet your domestic machine can’t do that! Another convincing feature regarding Kranzle 7/122 is having the capability to engulf water in from a water tank, even from a height of 1.5meters, so it is not always necessary to directly input to a water supply.

Kranzle 7/122 model also has the convenience element of optional quick-release couplings for lances and foam sprayer, to minimalise time between changing – Essentially speeding up working man-hours on projects.

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We plan to review all makes and models of pressure washers, scrubber driers, sweepers & more. So stay tuned.





Why does my Pressure Washer keep blowing fuses?


When it comes to blowing fuses in your pressure washer machine, there are multiple factors which may be at play. Continue reading for the most common mistakes and how to easily avoid, prevent or fix issues regarding fuses.


First thing Aqua Blast Systems tend to ask our customers: Are you using an Extension Lead? As this is usually, from our experience, the main cause for fuses blowing due to Pressure Washers in the UK operating just shy of 13Amps – So with more extension comes more resistance, meaning your fuse is having to work extra hard. Solution: Connect your pressure washer directly into a plug socket for maximum current; or ensure the extension lead cable you’re using is as thick, if not more than the pressure washer cable to enable current to flow easier.

If you decide to use an extension lead, we would highly recommend that you uncoil the entire cable to avoid resistance, over-heating and Voltage drop. It is important that you do so because if your machine does experience a Voltage-drop, naturally, your motor will begin to draw more Amps in an attempt to compensate – Therefore, blowing fuses in your machine or tripping the overload. Another demanding recommendation we insist on is advising that you use a water-proof extension power socket that is RCD fitted.

Overall, if your cable is too short, ALWAYS look to extend your high-pressure hose rather than mains cable.


Recently, has your pressure washer been subject to a high-pressure nozzle replacement? Did you check what size high-pressure nozzle your machine requires? This is another common mistake few of our customers do and the reason it becomes a problem for your fuses is that the wrong size nozzle can potentially restrict the outlet water flow. Imagine your machine requires you to spray water out of a ’10 pence piece’ size hole, and now you have a ‘penny’ size hole. Restricting water flow like this can overload the motor due to a build-up of pressure, as well as possible blowing of fuses. Always check that you are using the correct nozzle size required for your machine to avoid any future controversy.


Machine has been working perfectly for years and now suddenly feels like no power? Your machine is likely to be ‘scaled-up‘ which is the biggest problem, being water orientated, for pressure washers – as you can imagine. Similarly to nozzle sizes, a build-up of limescale can restrict water flow by forcing the hose circumference narrower, which again, can overload the pump and pop fuses.

However, limescale is not only an issue for your hoses, but it also builds up in the boiler and couplings around the machine – You can check if your machine has been a victim to limescale very easily; simply, remove the hose from machine and look down the end to see for any build-up.

Another way, if your machine has high-pressure chemical abilities, you can check for scale by running pressure washer with no hose attached, meaning that your pressure gauge should measure ‘0’. If no hose is attached and the gauge reads more than ‘0’ this is a typical sign for limescale. Solution: Aqua Blast Systems ALWAYS recommend Karcher branded ‘RM110’ for medium and hard water, as it prevents limescale deposits and ensures constant water flow without loss of performance. You can purchase this in-store.


Lastly, fuses dying could just be a machine-related problem. This can consist of many possibilities – We have condensed the top 3 most common problems we encounter regularly: Bypass Valve not operating correctly or Pressure Settings are set too high for the machine. If this is the case for you, what you’ll find happens is fuses blow when releasing the trigger. Solution: We advise taking your Pressure Washer to (ourselves!) an engineer to have your machine looked at professionally.

Are your fuses blowing by only starting-up your machine? This is most likely too much pressure trapped. Solution: Very easy, simplistic fix to this issue: Before powering pressure washer up, squeeze the trigger and release all pressure within hose as this will relieve the motors start-up of high pressure.

Completing the practice of all the above should minimalize the risk of fuses blowing. Thank you.





How to keep your Pressure Washer safe?


Where have I put my wallet? Where’s my phone? Where has my pressure washer gone!?  We understand that sometimes you misplace valuable possessions, as do we, but it’s not always a misplaced mistake… As few of our customers have witnessed first hand, Pressure Washers are amongst the most common cleaning equipment thefts, Aqua Blast has made this guide to potentially safeguard your machine against criminal activity. So here are a few pointers which we suggest to our valued customers as safety precautions to minimalize the risk of theft.


You’re looking to purchase your new pressure washer, now if you’re going to a direct supplier, there is probably nothing to worry about – however, still worth checking, that the machine’s serial number is whole and not ‘tampered’ with. Aqua Blast Systems have been approached before to buy machines without serial numbers for a cheaper price, we refused, but that doesn’t necessarily mean other suppliers will. If you are purchasing a second-hand machine from an individual and you find it has not got a serial number, I highly suggest not pursuing with your purchase as it is most likely a stolen machine and may potentially ‘back-fire’ on you in the future.


You have just purchased your new machine (hopefully from Aqua Blast!), great! The first thing we recommend is taking note of your machine’s serial number, make and model then safely logging it either, online or in a password notebook – Preferably online, as you should always have a back-log this way. This is very important, because if your machine does ‘go missing’ you can report it to companies like ourselves, so if the ‘missing’ machine ever enters our workshop for repair, our excellent database will run through serial numbers to determine if a machine is stolen or not – If a red flag appears, police action is then taken.

Another highly advisable precaution you should take is applying SmartWater to your machine along with a warning sticker. SmartWater is a traceable liquid and forensic asset marking tool that is applied to items of value to deter theft or identify thieves. The liquid discards a long-lasting and unique identifier, whose presence is invisible except under an ultraviolet black light – However, what makes this substance so incredible, is because it’s full of millions of tiny particles; a unique number called “SIN” (SmartWater Identification Number), registered in a national police database together with the owners details, is encoded into each particle/fragment. Speaks for itself, if your machine goes missing, SmartWater can help the recovery process. And if your machine is found, it can confirm directly the owner of the machine.


With the above precautions in place, you should be relatively safe along with common sense – like ensuring that you store your machine in a secure location with a padlock. Nevertheless, Aqua Blast continue to give you these few final pointers which some people don’t take into consideration, for example: Beware leaving your machine unattended while going on a smoke break or lunch break – We have heard cases where machines have been stolen within the hour of the operators break, be sure to always secure your machine because leaving it on ‘display’ will most-likely bring unwanted attraction.

Try to be aware of leaving ‘tell-tale’ signs outside the location of operation, such as Hoses, brushes, lances, triggers etc. It’s no doubt that criminals look out for these particular attachments to target their next victim, leading to an investigation on your property. Which no one wants.

I hope this small article has helped you and given some ideas on how to potentially prevent theft of your machine. Stay safe.




Not Long Left!

Karcher have approached Aqua Blast Systems with an amazing offer this month. For limited time only, we are authorised to provide up-to £250 off any new Karcher machine when you trade your old industrial machine in. So bag yourself an early present, and treat yourself to our full range of powerful, reliable Karcher pressure washers. If you are struggling to comprehend which machine you require within the huge, endless range – Buying a Pressure Washer – this link may benefit and support your decision. Otherwise, visit our growing showroom or call the office to run through suitable machines for your needs.

YouTube | Karcher | EASY!Lock Review


How to Maintain your Pressure Washer during Winter?



Great Britain winter season is almost upon us, and for many pressure washer users, this season hits where it hurts most… In the machine.

Now its no secret that pressure washers can cost a small fortune, so taking the correct procedures for maintenance is always the best interest, especially when frozen damage is not covered on the warranty! Aqua Blast get queries each year regarding this topic. What is the correct way to store your machine without damaging any components? During winter months, frosty conditions can freeze and destroy pump, pistons, seals and more – which can cost a fair few quid for repairs. So buckle up, read this brief, simple guide to a healthy machine this winter.


We recommend that you start by disconnecting all hoses from the machine (Inlet, outlet, chemical etc) and then proceeding to run the machine for a short period of time. While they’re no hoses connected, the excess water will drain out on the floor.

For your best attempt at a functioning pressure washer at winters end, we suggest that you leave the hoses disconnected to allow for any remaining water in them to expand – Pulling the trigger will release any left-over pressure in the hose and force disposal of the water within. Try to ensure that majority of the water is drained to prevent any slim chance of water travelling through the hose, freezing and cracking components.

Finally, confirm your machine is fully switched off, not left in standby mode, then store inside a frost-free container or unit. Storing machines with combustible properties, such as diesel or petrol, in your home, is not the best idea, for obvious reasons. So be sure to empty the tank and keep away from any potential igniters. Safety First!


Definitely do not make the mistake of starting the machine. This will destroy components such as the pump because small ice blocks form inside the unit and can cause damage to the pistons within the pump – This will more than likely result in a new pump requirement.

Do not leave water inside your machine because this will cause it to freeze and most likely crack components on the machine, causing leaks or pressure drop on the pump.

Do not leave water inside your high-pressure hose, as it can freeze and make the circumference of the hose smaller, meaning the desired water flow is not travelling through which can cause the unit to stop spraying or cause the machine to pulse – eventually overloading the pump.


Static machines require a constant flow of power to the unit, in order to run the frost heater. As it says on the tin, ‘frost heater’ is designed to stop your machine from freezing up. However, if you still found your machine frozen it is a very simple answer: Either you require an engineer to check for faults – or as mentioned above, a constant flow of power, are you switching your machine off at the wall socket? If you are this will cut all power to the unit, so ensure you only switch the unit off on the control panel and your ‘frost heater’ will continue doing its job!


  •  DO NOT go ahead after a long period of time usage and cover the exhaust ready for winter – Goes without saying, this is a fire hazard.
  • Vice versa, do not start your hot water machine with a cover over the exhaust as this can also cause a fire.