As I winterized last fall, I noticed that the pump cylinder on my toilet has a horizontal split on the lower horizontal section. A new cylinder is about $50 and since the unit is 10 years old I should probably replace the internal rings and washers etc. A totally new unit is about $140. I am pretty handy and will do the work myself. The question is, am I just better off buying the whole new unit or just replacing the parts I need? Thanks.
