Quote Originally Posted by userbob0001 View Post
This is the DIY to remove a lot of the stuff. Install is the reverse of removal. It's annoying work because of the confined spaces. The Combi bolts are allen head but it's too tight to get a ratchet back there. I broke one of those cheap ratcheting offset bit drivers doing the removal because the bolts are in there really tight. Getting the valve off of the bend below it isn't fun either because it's another one without enough space to get a large wrench onto.
Just put an 8mm box wrench on the Allen wrench and use the box wrench for leverage.