Hey there folks. I`ve got a meyer lemon that I`ve had for almost a year now. The soil that it`s in now (a cactus and citrus mix) is holding too much water for my liking, so I`m switching to the often recommended 5-1-1 mix. Can anyone tell me the best way to go about removing all of the old mix from the tree's roots without damaging them? Thanks in advance for the help!