Swim is on his 2nd extraction.His question is : after the mhrb sloution is mixed with the naptha and i'm waiting for the levels to seperate.The only jug i have at my disposal is a 1 gallon pickle jar. All the liquids mixed together will fill up mabey a little more than two thirds of the jug(leaving a good amount of extra space).When i agitate the mhrb slolution w/ the naptha (tilt it back and forth for 5 mins.)I've heard that the jug should not have too much extra space in order to prevent the liquids from sloshing around too much.Swim is probably gonna use 200 ml of naptha.I've heard that if there is extra space in the jug,after you add the naptha that you should add warm water in order to fill the container and eliminate extra space.Can anyone confirm this or have another suggestion?any feedback would be gratefully appreciated