Following their decommissioning, a report was commissioned that examined the cost of maintaining and re-activating the submarines. It was found too costly and the plan was abandoned. In February 1925 the Admiralty enquired into the condition of the two warships and the response was negative, questioning the two boats ability to return to service. In 1926 the two submarines were put for sale along with , the proceeds of the sale going to the Royal Navy. "CH-15" was sold on 9 March 1927 for scrap and broken up.