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1. PSI and GPM Ratings Look for models with a PSI (pounds per square inch) rating between 1200-2000 for safe and effective car washing. A higher PSI might be too aggressive and could damage the paint. The GPM (gallons per minute) indicates how much water the unit can deliver; a higher GPM leads to better cleaning efficiency.
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One of the main considerations when selecting a pressure washer hose is its compatibility with your machine. Pressure washer hoses come in various lengths, typically ranging from 25 to 100 feet. A longer hose allows you to reach different areas of your vehicle without having to move the washer frequently, making the cleaning process more efficient. However, it’s essential to balance length with the potential for pressure loss over longer distances; therefore, choosing the appropriate length for your washing needs is key.
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