All weather lifeboat launched at 1728 to 15mtr Cruiser making water with 2 persons onboard in Long Reach, River Medway. ALB advised that casualty had been taken in tow by another craft. Lifeboat on scene at 1746 and alongside craft, which was secured alongside the lifeboat, portable pump placed onboard and engine compartment pumped dry, with the craft having no propulsion, it was manoeuvred safely into the locks at Gillingham Marina, where it was made secure. ALB released and returned to station at 1856. Estly 2/3.