A circular drain pipe has a radius of 375 mm. It conveys water (30 ºC) from location 1 to location 2, between which there is a drop in elevation (0.0015 m per m). Take the Manning coefficient, n = 0.015. Calculate the flow rate of water (discharge) if the pipe is completely filled. If the same pipe, transporting water between the same two locations, were now filled to a depth of 225 mm, by what percentage would the flow rate increase? Determine also the respective Reynolds number and Froude numbers.