ケルヒャーで落ちない？駐車場コンクリート掃除で黒ずみ・コケ汚れをプロが高圧洗浄した結果

For those struggling with cleaning parking lots and concrete themselves—whether it's stubborn stains, uneven results from Kärcher pressure washers, or moss quickly returning—this video showcases a professional's technique using chemicals and high-pressure washing to remove black stains and moss. We'll explain why water-only high-pressure washing only cleans the surface and how using chemicals helps maintain a clean finish for longer. If you're concerned about dirt, black stains, moss, or rain streaks on your exterior walls, please contact us via our official LINE account (link in description). ————・・・————・＿・————・v・———— Gaiheki Maintenance Co., Ltd. (formerly Rihom Co., Ltd.) Trade Name: Gaiheki Wash 425-5 Kami-Oso-cho, Utsunomiya City, Tochigi Prefecture 320-0013 ————・・・————・＿・————・v・———— 880 yen per square meter Average-sized detached house (2 stories) The estimated cost for one area is approximately 40,000 yen ✨️ ⁡ Available nationwide 🔥 ⁡ ◾︎We are currently recruiting franchise partners nationwide. ————・・・————・＿・————・v・———— ▶︎Chapters 0:00 Starting the cleaning of the parking lot floor 1:11 Reasons for using chemicals and the pitfalls of cleaning with water alone 2:09 Penetrating with chemicals to remove moss 3:24 Why self-high-pressure washing results in unevenness 8:46 Cleaning concrete with a specialized machine 17:47 Finish and change in whiteness after professional work Music: RYU ITO    / @ryuitomusic   #GaihekiWash #ExteriorWallCleaningSpecialist #GaihekiMaintenanceCoLtd