A Water filtration device will undergo three stages and a reverse osmosis filter using manual pumping. It would pass through the sediment filter with a flowrate of 1L/s, then a mesh filter with 9.23 L/s, and then an activated carbon filter with 1.126 L/s. Assuming these filtration stages do not need high pressure (psi) to undergo filtration. What is the final flow rate? Assuming the three stages will undergo reverse osmosis filter with 130 psi of DC water pump and 0.044 L/s of flowrate. What is the final flow rate with reverse osmosis application?