Desain Instalasi Hemat Air di Gedung J PPNS dengan Penerapan Teknologi Sanitasi Modern

Abstract

Water is an essential and non-substitutable natural resource, particularly in higher education
environments such as the Politeknik Perkapalan Negeri Surabaya (PPNS), where daily operations by students,
faculty, and staff rely heavily on its availability. This study proposes the development of an efficient piping
system for Building J at PPNS, emphasizing modern plumbing strategies aligned with sustainable sanitation
practices. A comparative analysis was conducted between the existing conventional sanitation system and an
alternative design incorporating water-saving technologies. The scope of the analysis included material
estimation, equipment selection, and comprehensive budget calculations. Findings indicate that the building's
average water demand is 292 liters per minute, with a pump power requirement of 1.234 kW and a total head
of 25.8505 meters. Implementation of modern technology resulted in a water reduction of approximately 11,617
liters per day, representing a 45% improvement in efficiency over the conventional system.