<prompt> Kufanya uchambuzi wa gharama-faida ya mikakati tofauti ya kupunguza matumizi ya maji katika vifaa vya michezo.  <response>: Usimamizi wa maji ya mvua ni mkakati wa uhifadhi wa maji ya mvua na urekebishaji wa maji ya mvua, ikiwa ni pamoja na urekebishaji na urekebishaji wa maji ya mvua na urekebishaji na urekebishaji wa maji ya mvua na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji na urekebishaji. 