 Zibold 's condenser began to operate in 1912 with a maximum daily production that was later estimated to have been 360 litres ( 79 imp gal ; 95 US gal ) – Zibold made no public record of his results at the time . The base developed leaks that forced the experiment to end in 1915 and the site was partially dismantled before being abandoned . ( The site was rediscovered in 1993 and cleaned up . ) Zibold 's condenser was approximately the same size as the ancient stone piles that had been found , and although the yield was very much less than the yield Zibold had calculated for the original structures , the experiment was an inspiration for later developers . 
