![]() Also, if you operate cold water equipment more than a few hours a week, you should closely consider the labor savings that could be realized by switching to a hot water pressure washer. ![]() You wouldn’t think of washing your greasy hands with cold water and the same principle applies to power washing. Cold water pressure washers cannot remove grease and oil effectively. 2.3 gallons per minute flow rate 2 semi-pneumatic tires 30-ft. However, to clean any surface that needs to be degreased, hot water is a must. For more cleaning power there are accessories available that work with a cold water pressure washer, increasing cleaning power and decreasing cleaning time. Cold water pressure washers are ideal for removing dirt and mud from most any surface decks, siding, concrete, etc. When choosing a pressure washer, your application will play a major factor in whether you need a Hot or Cold water pressure washer. A maximum working pressure of 4000 PSI and a flow rate of 3.5 GPM help clean efficiently. Shorter cleaning time means less labor, which equals more productivity. Is Time a Factor?Ī heavy duty pressure washer can cut cleaning times in half. A mid-range pressure washer can eject water at 2GPM with a max pressure of 2,500 PSI, that’s a total of 5,000 CPU 25 times more powerful than your average garden hose Let’s forget about the math and talk about how GPM and PSI should be balanced. Although these models are not recommended for heavy, consistent usage they are a lower cost alternative to more expensive, belt driven models. The pump is directly coupled to the engine or motor causing the pump to spin twice as fast as the belt drive models. Direct-Driveįor applications not requiring more than 20 hours of use per week, direct driven pumps are more commonly used. The belt connecting the engine or motor with the high-pressure pump dissipates the heat and vibration, minimizes the wear and thus the repair on key components, and extends the life of the pump by reducing the RPM demand. Most commonly found on industrial models, a belt driven pump is ideal for cleaning applications requiring 20+ hours of use per week. Quality is determined by the type of pump and the components of the pump. Cleaning units do not determine quality of the unit. The 4000 PSI unit cleans 50% faster than the 3200 PSI unit. Cleaning units is calculated by multiplying PSI and GPM.ģ200 PSI x 2.4 GPM = 7680 Cleaning Units VS. Sort 1 2 Enjoy cleaner results with DEWALT®s line of portable pressure washers. Cleaning units gives the customer a measure of unit performance (efficiency) to compare one unit to another.
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