I replaced the broken BALL ROD which attaches to the drain with a universal model and it works fine. However I also replaced the POPUP with a "universal" model which is almost exactly the same as the old one, but has two holes at the bottom (where the end of the BALL ROD in inserted) instead of one hole. I can't get the "universal" POPUP to work now, regardless of which hole on the bottom of the POPUP I use. (I had forgotten which hole was previously used on the PULL ROD ASSEMBLY, so I looked at my other bathroom, and it uses the second hole from the bottom, so that's where I inserted the new BALL ROD). I placed the new and old POPUPS side by side, and it looks to me that the BALL ROD would have to be positioned exactly where the plastic piece is that divides the two holes. I bought the popup at Lowes, because it said universal, and I don't have a clue what kind of sink I have (might be a delta) but it is in a modular home. Is there any way to get a universal popup to work, and what should I do?