Hello🤔The video above shows a worker using a pneumatic tool to clean a hole for installing a photovoltaic system. The tool is designed with a round metal tube pointing upwards, one end of which is inserted into the hole. When the machine starts, the compressed air pressure suck. moreSince 2010, hyCLEANER has been a pioneer in modern cleaning technology, proudly “Made in Germany. ” With a comprehensive portfolio of cleaning robots and systems, the company provides efficient, safe, and eco-friendly solutions for maintaining solar panels, facades, and glass surfaces worldwide. Filter February - 15% Off All Filters - Discount applied at checkout. Tucker® is the oldest name in the industry, delivering the highest quality components with unique features that simplify. [Amazon-developed Certification] Compact by Design identifies products that, while they may not always look very different, have a more efficient design. Our store and community are dedicated to solving the PV soiling problem through technologies. We are a solar cleaning professionals in California with over 14+ years of experience bringing you the best solar cleaning tools on the market.