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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 key features of automatic car wash machines is their use of high-pressure water jets and specialized cleaning agents. These machines are capable of reaching every nook and cranny of a vehicle's exterior, ensuring a comprehensive wash that hand washing may miss. Furthermore, many manufacturers are focusing on environmentally friendly technologies, creating machines that use less water and biodegradable cleaning agents to minimize their ecological footprint.
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