hi there! i am new to DIY and have NEVER done anything plumbing related in my life so bare with me here. My sink is leaking from the handle - only the hot water side and it doesn't leak underneath the sink, just small amounts of water come out from the edge of where the handle pieces meet on top. It isn't a huge amount of water so isnt urgent, but I'd like to figure it out. My father in law (who has much more experience with plumbing than I) took a look and tried to take it apart to replace the interior piece (not sure what exactly) but couldn't get it with the sink still on the wall, the space was too tight. He was saying it would have to come off the wall to really fix it. Not sure if anyone has thoughts or experience with this type of thing?