Bathroom sink stopper installation is actually quite easy if you are willing to familiarize yourself with those parts. A sink stopper mechanism consists of four major parts. The stopper and the lift rod are the parts that are exposed. You can operate them simply by pushing or pulling the rod. When the rod is pulled, the water from the faucet will flow down the sink drain. On the other hand, when it is pushed, the water will collect in the basin. Meanwhile the pivot rod and clevis strap are concealed from view. Both of them are the more complicated parts of a sink stopper mechanism.
A bathroom sink stopper usually has a round shape, smooth surface, and fin-like body extensions. At the end of it you will find a loop or hole which enables the stopper to be attached to the rest of the mechanism. When plugging the stopper into the sink drain, make sure that the bottom of the stopper points toward the opening of the drain pipe. Besides the stopper, the lift rod is another part of the sink stopper system mechanism that is exposed. By pulling it up or pushing it down, you can determine whether to close or open the stopper. To put the lift rod in place, insert the end part of it into the two holes in the bottom part of the clevis strap. Tighten the screw in the middle of the two holes to secure the rod.
The clevis strap consists of a number of holes, and one end is shaped like the letter “C.” A spring clip is inserted into one of the holes of the strap with both sides of the clip lined up with the hole in the strap. While the spring clip keeps the pivot rod firmly in place, the end part of the pivot rod is placed through the clip and clevis strap. The pivot rod is directly connected with the bathroom sink stopper. The pivot door has two ends which are different in length. The shorter end is attached to a large ball which is inserted to an opening in the sink and goes through the hole of the stopper. Pivot rod is responsible for pushing up the stopper or making the stopper fall into closed position.