<![CDATA[Flat X will be built to meet the demand for simple and affordable homes in Sumedang Regency. The construction of an apartment must be equipped with adequate plumbing for clean water and wastewater so that the health of the residents is maintained. The purpose of this research is to plan the need for clean water, including the calculate dimensions of the groundwater reservoir , roof reservoir, and clean water pipe and calculate wastewater discharges ( grey and black water) and calculate the use of greywater recycling. Recycled water is used in the rinsing and watering of plants. Research results for a flat population that can reach 3,658 people, the total requirement for clean water which is 311 m3/day, the volume of underground reservoir 1 and 2 each 352 m3 and 165 m3. The volume of roof reservoir 1 and 2 is 42 m3 and 34 m3, respectively. The diameter of the r first class clean water pipe has a range of 20-25 mm, the diameter of the second class clean water pipe has a range of 25-25 mm, pipe diameter greywater has a range from 48-60 mm, pipe diameter black water range 48-114 mm. Greywater treatment is carried out using a Sewage Treatment Plant (STP) which has a volume of 200 m3. The results of the treatment efficiency are 80%, so the recycling process is capable of saving 51% of clean water.]]>
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