We need the design and construction plans with the following specifications: Device Requirements specification is as follows: 1. The target use of machine is for a drinkable water. 2. The device performance volume (daily inflow): 50 m3/day. 3. Type of machine RO 4. Outlet TDS: less than < 50 ppm 5. TDS Outlet water shall be used for drinking water 6. Per-treatment is needed 7. Have the possibility to add chlorine at the exit 8. Can be adjustable to produce Distilled water. Which means to reach TDS bellow 10. 9. Minimizing the loss of water in producing the drinking water. efficiency is over 75 per cent, which means to have water loss less than 15% 10. WHO standard