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Daynatech


Daynatech



Industrial, Commercial and

                      Domestic Cleaning Machines



Home Products Our Work Contact Us

Daynatech



Industrial, Commercial and

                      Domestic Cleaning Machines



HOW DO I SELECT THE RIGHT POWER WASHER FOR ME?

There are three questions you should ask yourself when determining what kind of pressure washer is right for you.  The first question is, “Where do I intend to use the power washer?  At home or at work?”  Typically, you don’t need as powerful of a pressure washer for your personal use at home as you might on a job site.  Household jobs for example, shouldn’t need a machine larger than 3000 PSI, whereas 3000 PSI would be minimal for jobsite usage.

Another helpful question to ask yourself is, “What do I want to clean?”  If you are expecting to use your power washer for basic household jobs such as driveways, patio furniture, decks and etc. you can get by with a unit that offers relatively low pressure (2500 PSI).  If you’re plans are a little bit more daring such as blasting mold or mildew off of concrete or prepping the house for painting you should consider a unit with higher pressure.

Lastly, how much cleaning will you be doing?  Will you be cleaning large surface spaces?  If the answer is yes, you should consider a unit offering a higher LPM.  More water means more cleaning power!  A higher LPM will get the job done quicker.

WHAT CREATES THE PRESSURE ON MY PRESSURE WASHER?

The nozzle is what creates the pressure and also the spray pattern of your pressure washer. If you have the incorrect nozzle you may not get the full potential out of the machine. Always make sure that your pressure washer nozzle is clean and free of debris.

IS PSI OR LPM MORE IMPORTANT TO CONSIDER?

The answer is both.  PSI and LPM work together and the right combination is important depending on your pressure washing needs.

PSI stands for “Pounds per Square Inch” and refers to the amount of pressure that the respective machine can produce.

LPM stands for “Litres per Minute” and refers to the amount of water coming from the unit.

To clean productively, a pressure washer should be doing two things: stripping or scrubbing and rinsing.  This is what sets a pressure washer apart from a regular garden hose. PSI exerts the pressure to “strip” or scrub off the dirt while GPM is the rinsing power that washes the dirt away. The combination of PSI and LPM results in “Cleaning Units” or CU.  This is a way for you to measure the overall performance of the machine and compare efficiency of one to another.  Cleaning units is calculated by multiplying PSI and LPM

Example:

A pressure washer with 3000 PSI and 8.0 LPM has 6000 Cleaning Units.

A pressure washer with 2700 PSI and 12.0 LPM has 8100 Cleaning Units.

This example points out an important fact.  Higher PSI does not mean it’s necessarily “better”. LPM is usually more important to a commercial user because chemicals are typically involved when the machine is intended for professional purposes.  Since the chemicals are working to break up the grime, the flow, or LPM, is more important because it is needed to rinse the debris away, and quickly.  It all depends on the task at hand.  If you are confused, refer to the section above titled, “How do I select the right pressure washer for me?”

HOW DO I KNOW IF I SHOUL D BUY A HOT- OR COLD-WATER PRESSURE WASHER?

Application is the major factor when debating a hot- or cold-water pressure washer. A cold-water machine is great for removing dirt on almost any surface.  Unique jobs can be tackled with certain accessories and attachments such as high pressure nozzles, rotating brushes, detergent applicators and etc. These will also decrease your cleaning time.

However, jobs involving grease or oil are better tackled with a hot water machine.  Another reason to consider a hot-water unit is if you will be using the machine for many hours each week.  You can save a lot of time and labor expense by replacing a cold-water unit for hot.

FAQ

Ph. 02 4960 9400

www.daynatech.com.au