Water Conservation Using Rainwater Harvesting System in Urban Mosque for Sustainable Infrastructure

Today the urban cities are facing increased water stress especially for available water
resources. Water resources is not only used for domestic purposes, but also for non-domestic
purposes or public facilities. One example of a public facility that uses water to meet daily
needs is a mosque. In urban infrastructure has mosque as moeslem worship places and the
building need to be environmentally sustainable. Rainwater harvesting system is one method
for water conservation and relate for sustainable infrastructure. Rainwater harvesting has a preeminent
role to play and utilization of rainwater and also to reduce run off. By looking at this
condition, rainwater should be utilized optimally. This aim study for planning of rainwater
harvesting system at mosque with the main purpose of this planning being as an alternative to
clean water and minimizing the use of ground water for water conservation. The data needed in
planning the rainwater harvesting system are data on water demand, rainfall, and as built
drawings. After the calculation, the components of the rainwater harvesting system design are
obtained, namely storage tanks (3,100 L), gutters (6 inches), first flush diverter (4 inches with a
length of 7 meters), and piping systems (4 inches). The construction of this rainwater harvesting
system is expected as an alternative to minimize the use of ground water and clean water
supplies in the future, especially the need for clean water for worship places