I hate to start a thread over this but i couldn't find any info. on this. When i installed my uppipe to pedestal gaskets the only way i could get them to fit properly was to have one gasket upside down. What i mean is one gasket had the ribbed/raised oring side facing up or toward the uppipe and the other gasket that same side had to be pointed toward the pedestal. I hope this makes sense, i could find NO WAY to get both gasket to fit the same way so they are installed opposite of each other i guess you could say. Is this normal i don't see why it matters