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In addition to the PSI, the type of nozzle you use can greatly influence your washing experience. Most pressure washers come with a variety of nozzle tips designed for different cleaning tasks. For vehicle washing, a wide-angle nozzle (often color-coded green or yellow) is perfect, as it creates a broad spray pattern that offers a gentler wash. Avoid using zero-degree nozzles, as these produce a concentrated stream of water that can easily damage the car's exterior.
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Another significant advantage of tunnel car wash franchises is the reduction in labor costs. With many processes automated, such as waxing and rinsing, fewer employees are needed on-site. This means that franchise owners can save on staffing expenses while still maintaining high standards of cleanliness and service. The operational model is designed for profitability, thus appealing to investors looking for a sound business with manageable overhead.
In addition to PSI, water temperature and detergent choice play significant roles in achieving a clean finish. Hot water combined with a suitable car wash detergent can help break down stubborn dirt more effectively. Ensure you use a detergent specifically designed for vehicles, as household cleaners can be too harsh and may strip protective wax coatings.