Theexperimentaldatawascollectedfornon-coated,half-coatedandfullycoatedpipesbyvaryingtheheightofthetank(H)whichgivesdifferentflowrates(Reynoldsnumbers).Highspeedcamerawasalsousedtoexaminetheflowprofileineachpipebymonitoringtheairbubblesgeneratedfromthenaturallydissolvedairinwater.Theflowsinthenon-coatedandfullycoatedpipesshowedasymmetricalflowprofileswhilethehalf-coatedpipeshowedasymmetricalflowprofile.Thesettlingchamberpriortotheflowwasusedtomakesurethatasimilarinitialconditionoftheflowforallthepipesisachieved.ItisalsomoreeaserandcosteffectivetomachineanumberofchannelsinonePerspexsheetthanindividualchannel.Toconfirmthatsettlingchamberhasnoeffectonpressuredrop,thepressuredropwasmeasuredfor2and4mmpipes(non-coated)withoutsettlingchamber.