beer smith set up "Dead Space"

[RobjF]

Hey guys
Quick question, just changing over my set ups on beer smith from a esky mashtun to my new keg convertion. My new set up has a 15" folding screen in the bottom but the pick up tube goes almost all the way to the bottom of the keg. Should I be measuring the volume under the screen to work out my 'dead space' or is it just what liquid will be left in the bottom after being fully drained.
Thanks Rob

 

[AndrewQLD]

Only the liquid left in the bottom after you drain

 

[RobjF]

Thanks Andrew.