A stop log slot/guide cleaning method and apparatus is disclosed as a frame with attached scraping or scrubbing devices attached in locations that will contact and shear off attached marine life or debris. A flushing system that using water or compressed air or both attached and located on the frame pushes the removed or loose debris off of the stop log slot/guide seating surfaces as the frame is lowered into or removed from the slot leaving clean flat sealing surfaces for the stop log seals to seal against.