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Pressure Washer Questions & Facts

Here is some frequently asked questions about pressure washers. If you don't see what you are looking for or have a specific question about a product or our service please call us on 015395 66193. Alternatively, you could submit your question on our enquiry form here

Electrically heated pressure washer questions

Do you have an ample supply of 3 phase electricity with a neutral?
  • 415 Volt 32 Amp
  • 415 Volt 63 Amp
Max temperature of high pressure water?

The maximum temperature is 80 degrees until the boiler tank is empty. Tanks range from 80 - 150 litres. Depending on the pump flow per minute, this may only last ten minutes of continuous use 

Consider how the user will operate the machine

If the user periodically stops and starts the machine by releasing the handgun, the machine will have a better chance to re-heat the tank to the pre-set / higher temperature. 

When the user keeps the trigger pressed, it directly affects the machine's temperature. The pre-heated water tank gets depleted, causing the output temperature to drop as the heat exchanger struggles to maintain the pre-set temp /desired thermostat setting.

How many hours use per day will the machine be in operation?

The amount of hours gives a good idea of what machine is suitable.

Example: Nilfisk MH5 E24is rated for 5-6 hours of use per day

How many metres of pressure washer hose is required , and does it need to be non marking for food areas.

On some models of pressure washers, the  15 - 20 metre hose reel will not have enough room to fit a foam injector. Concider a wall mounted hose reel.

Pressure Washer Questions

Why has the pressure washer pump gone a milky colour?

The oil has emulsified which means it has mixed with the water pump.

  • Check the ceramic pistons for cracks and replace if you see a hair line crack. 
  • Repalace water seals & oil seals
Why has the burner stopped working on my hot pressure washer?

Answer: Some possible causes

  • Contaminated fuel
  • Level level switch not working
  • Electrodes Worn
  • Magic eye faulty
  • Not enough fuel pump pressure
  • Pressure switch or thermostat faulty
  • Faulty Flow Switch
  • Dirty Fuel filter
  • Blocked Fuel jet or faulty fuel pump
  • Fuel pump drive worn
  • Faulty 240v / 24v solenoid
Why Does the high pressure hose vibrate?

It is likely that the pump valves have debris in or the inlet side of the pump is drawing in air.

Why does the pressure washer turn on but no water comes out?

It is possible that there is a blockage in the pressure washer hose, gun or lance jet. Remove the high pressure hose and turn the machine on to see if water comes out.

Air could be drawn in by either a chemical valve or loose inlet hose clip on the inlet side of the pump.

Water Filter blocked 


What to concider when looking for a new Floor Scrubber Drier?

Ask yourself the following questions;
• Do you clean hourly, daily, weekly, monthly?
• How do you clean at the moment?
• What Is the result you are looking for? - Improved cleaner floors or improved quicker cleaning time.
• What is the budget?
• How many square meters needs to be cleaned?
• Do you have racking / shelving in this area?
• What is the distance between racking?
• What is the distance from the wall to end of racking?
• What is the access/door size width/height to this area?
• Is It ground floor, 2nd level, or mezzanine?
• Is there a lift? (What is the size/weight limit of lift - machine dimensions?)
• What is the floor surface? - concrete, tile, non-slip etc (Disc-cylindrical-pad)
• Where is the tap point for solution filling?
• Where is the drain to empty/discharge waste water?
• Are there people working in this area? (in-built charger-acid battery charging!
• Are there any obstacles in the area?


What to concider when looking for a new Floor Sweeper?

• Cleaning inside or out (determining power - battery, diesel, petrol or dual power)
• How many square meters to sweep?
• What will they be emptying the waste into - blue bins - green
• What type/size of debris to sweep
• Sweeping in a warehouse, racking - gangways - overhead height
• Determine sweep width - pedestrian or ride on for turning, door access, Sweeping inside & out - (solution - Dual Power - battery/diesel)
• Floor surface type
• Where are battery chargers kept - (determining external or on board chargers)
• Sweeping up Ramps- (climb angle)


What is ATEX?

INDUSTRIAL ATEX VACUUM - the following is taken from the HSE website.  You can read the full article here

If the material being collected is combustible, it will be mixed with large amounts of air within the vacuum cleaner. This will form a cloud of dust and vapours inside the machine, and all of this will then produce an explosive environment. Vacuum cleaners produce static electricity as the dust passes through the machine. Conventional vacuum cleaner motors also produce sparks from carbon brushes whilst running, so now we have the 3 main elements for producing an explosion resulting in a very serious incident.

The ATEX approval will be specific to the category of equipment and nature of the risk, 'combustible gas, vapour or dust etc', considering the particular hazardous zone.

'Zone 21 - Zone 22 - Zone 1 - Zone 2'.


Zone 0: a place in which an explosive atmosphere consisting of a mixture with air of dangerous substances are in the form of gas, vapour or mist that is present continuously or for long periods.

Zone 1: a place in which an explosive atmosphere, consisting of a mixture with air of dangerous substances in the form of gas, vapour or mist is likely to occur in normal operation, occasionally.

Zone 2: a place in which an explosive atmosphere, consisting of a mixture with air of dangerous substances in the form of, gas, vapour or mist, is not likely to occur in normal operation, but, if it does occur, will persist for a short period of time.


Zone 20: a place in which an explosive atmosphere in the form of a cloud of combustible dust in air is present continuously, or for long periods.

Zone 21: a place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation, occasionally.

Zone 22: a place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation, but, if it does occur, will persist for a short period of time only.



We will make every effort to deliver orders next day on cleared funds if the order is processed before 2 pm. Sometimes errors in our stock levels can occur so if you need the item for next day, please get in touch and ask. We will try to inform you of any issues regarding stock levels and delivery times. Time for delivery is always given in good faith as an indication and we shall not be liable for any consequential and indirect losses, expenses or damages in whatever manner caused by late or non-delivery of goods. For heavier items which require more than one person to carry and any lifting equipment necessary will be your responsibility to arrange and at no cost to us. We are only obliged to offload the goods onto a hard ground reasonably close to the delivery address and you shall be responsible for the distribution of the goods delivered. You shall have no right to refuse a delivery and shall arrange for a member of your household who is over 18 years old to sign for delivery. In the event that you suspect that the goods are lost or damaged in transit, please contact us immediately. Upon delivery, all risks of the goods shall pass to you so it is your responsibility to keep the goods safe and undamaged and to possess appropriate insurance to cover them.

Built to order products cannot be cancelled , you must make sure that the information provided by you and any information provided by us (e.g. specifications and items in our quotation) are correct and suitable for your use before you place an order with us.

You must also inspect the goods as soon as possible upon delivery. In the event of damage, faulty goods or short supply, you shall notify us in writing as soon as possible and in all cases within seven days from the date of delivery of any alleged damage, fault or shortage. If you do not comply with this provision, you shall be deemed to have accepted the goods. We shall be afforded an opportunity to inspect and make good the supply. Should the alleged problem be proven, our liability shall be limited to making good the fault, replacing the goods or refunding the price at our absolute discretion. We shall be under no liability whatever to you for any consequential or indirect loss and/or expense (including loss of profit and extra labour costs) suffered by you arising out of the proven problem.

Nothing in this Term shall restrict or exclude any liability for death or personal injury caused by our negligence or affect your statutory rights dealing as a consumer