So I have had my bike for a little over 7 months now, and it is a tubeless setup. I am pretty sure that the shop I purchased it from said to replace the sealant after about 6 months, but I have no idea how much of that process I should go through. I have noticed a little bit of sealant on the outside of my rear rim for about 4 inches, and I think it is time to replace the sealant. I have not done this before, and don't know where to start. Should I remove and replace the rim tape or not? Do I have to empty the sealant I already have or just add fresh sealant? Should I just take it to the shop and have them do it for me? I am a little lost and YouTube has not provided me any answers, so I came here for help. Anything is appreciated!