SSD on OSX Mountain Lion says it's almost full but isn't So, first things first, my mac is a hackintosh so my issue may be some weird issue due to that. However, I was wondering if what I'm experiencing is signs of ssd failure. I have a 128gb ssd in the rig for the os, applications and active projects. Over the past 2 months the drive has been slowly losing free space. I first chalked it up to filling it with projects but all of a sudden it has 100gb used so I check how big my projects and applications are and they are 30gb. I know the os isn't 70gb so I was wondering if this may be a sign of a failing ssd or if it may be something else.
TRIM isn't enabled on non-Apple OEM SSDs in OSX.  Perhaps garbage collection is not happening.  You can find a lot of sites that explain how to enable TRIM in OSX.  I haven't provided a link as they are plentiful and you may wish to use a site you're more comfortable with.  Use keywords: "enable trim support OSX terminal"

This link explains it but you should not need the freeware tool that the article mentions.  You can enable it from terminal with a few commands.