What is the 'HYPER WATER' system?

It is a system that purifies water to the A4 level of JIS K0557, known as 'ultrapure water', for car washing. It removes impurities, eliminating the need for wiping and reducing water spots.

What was the purpose of Yokohama Kotsu introducing this system?

The purpose was to improve the efficiency of car washing, reduce chronic workloads and physical burdens on drivers and staff, and enhance the cleaning quality of vehicles.

Have there been any specific benefits from the introduction?

The wiping process, which took 10 to 30 minutes per taxi, has been eliminated, leading to increased operational hours and reduced driver burden. It has also standardized quality and improved the efficiency of interior cleaning.

Is it also used for interior cleaning?

Yes. Using towels soaked in ultrapure water prevents water spots and reduces the need for double wiping of interior windows, dashboards, and plastic parts.

What are Yokohama Kotsu's future prospects?

Through the improved efficiency of car washing, Yokohama Kotsu aims to enhance employee satisfaction, improve driver retention rates, and strengthen competitiveness in recruitment efforts.

Yokohama Kotsu Implements 'HYPER WATER' System Across All Operations, Boosting Efficiency by Eliminating Wipe-Downs

Published Jun 5, 2026 12:00 AM ・ Updated Jun 14, 2026 9:03 AM ・ 6 min read ・ Source: PR TIMES

Yokohama Kotsu has installed Marfied's 'HYPER WATER' ultrapure water car wash system across all its facilities, significantly improving efficiency and reducing staff workload by eliminating the need for post-wash drying.

Marfied Co., Ltd. (Headquarters: Naka-ku, Yokohama, Kanagawa; Representative Director: Hiroshi Ikeda, hereinafter 'Marfied') announces that Yokohama Kotsu Co., Ltd. (Headquarters: Isogo-ku, Yokohama, Kanagawa; Representative Director: Kensei Ogura, hereinafter 'Yokohama Kotsu') has implemented the 'HYPER WATER' ultrapure water car wash system across all of its locations.

This implementation eliminates the conventional post-wash wiping process, significantly streamlining car wash operations and reducing the burden on drivers and staff.

Background: Addressing Chronic Workload and Labor Shortages In the taxi industry, daily car washing is essential, but it is often performed by the drivers themselves, posing a significant burden after shifts. Post-wash wiping, in particular, is time-consuming and labor-intensive, creating a need for improvements in operational efficiency and work-life balance.

Against this backdrop, Yokohama Kotsu installed 'HYPER WATER' in all its branches in September 2025 to improve efficiency and reduce the workload for employees.

Benefits: Reduced Burden and Enhanced Interior Cleaning Quality The 'HYPER WATER' dedicated car wash system purifies water to the A4 level, the highest standard of JIS K0557. By removing impurities that cause water spots at the molecular level, vehicles do not retain water spots after natural drying, allowing for the omission of wiping processes.

Yokohama Kotsu has reported the following benefits:

- Streamlining Operations and Reducing Labor: Saved 10-30 minutes per taxi, previously spent on wiping, contributing to increased operating time and reducing workload during peak seasons or post-shift hours. - Standardizing Cleaning Quality: Achieved stable exterior quality regardless of operator skill level or environment, ensuring a uniform finish even on dark-colored vehicles. - Improving Interior Cleaning: Utilizing towels washed and dampened with ultrapure water, the company has enhanced interior cleaning for windows, dashboards, and resin parts, reducing the need for second wipes.

As public transportation, taxi cleanliness—both exterior and interior—is crucial for service quality. This initiative contributes to operational efficiency while maintaining vehicle cleanliness and improving customer satisfaction.

Driver Feedback - Driver A: 'The removal of wiping tasks from car washing, which was sweaty in the summer and freezing in the winter, has been a significant physical relief.' - Driver B: 'Using HYPER WATER eliminated the need for waxing, and car wash time has been reduced by more than half. I can go home earlier and enjoy more private time.'

Expectations for Improved Work Environment and Recruitment Reducing the car wash burden contributes to employee satisfaction, and Yokohama Kotsu expects mid-to-long-term benefits including a better workplace environment, higher retention rates, and increased recruitment competitiveness.

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Source: PR TIMES
Category: News
Products / services: HYPER WATER

Yokohama Kotsu Implements 'HYPER WATER' System Across All Operations, Boosting Efficiency by Eliminating Wipe-Downs

⚡ Key Points

Expectations for Improved Work Environment and Recruitment Reducing the car wash burden contributes to employee satisfaction, and Yokohama Kotsu expects mid-to-long-term benefits including a better workplace environment, higher retention rates, and increased recruitment competitiveness.

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