InventHelp Inventor Develops Black Holding Tank Accessory for RVs (SBT-1912)
PR Newswire —
PITTSBURGH, Feb. 9, 2026 /PRNewswire/ -- "I work in trailer park maintenance and noticed problems that guests have with stopped-up black tanks," said an inventor, from Indio, Calif., "so I invented the WATER JET BLADE. My efficient and sanitary design would ensure proper flow from the...