[Case Study] Cleaning of the bicycle parking area paved with white Mikage pin stones in front of the ward office.

The granite that was thought to be black is actually white granite! Here’s a case where the person in charge was surprised after the comparison post-cleaning.
We received an inquiry from a facility maintenance officer at a certain ward office in Tokyo regarding repair work on granite paving stones in a bicycle parking area. The area had been around for quite some time, and the dirt was in such a terrible state that the exterior of the building gave a dark impression. Additionally, since it was a bicycle parking area for visitors, we were unable to completely close it off, which posed a challenge.
To address this, we introduced the high-pressure cleaning system 'HOTJEBLO Fujiyama' with anti-splash features. The work in the approximately 50m² bicycle parking area was completed in about an hour.
The comparison after cleaning received great acclaim. The facility maintenance officer was astonished to find that the granite they thought was black was actually white granite.
[Case Overview]
- Equipment Used: HOTJEBLO Fujiyama
- Issues:
- The exterior of the building gives a dark impression during the repair work on granite paving stones.
- Unable to completely close off the bicycle parking area for visitors.
*For more details, please refer to the PDF document or feel free to contact us.*

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