Yesterday, I replaced the pop-up assembly on a bathtub due to its failure to properly seal and drain water. After removing the old, corroded assembly, I installed a new, high-quality brushed nickel pop-up drain to match the existing fixtures. I ensured the new assembly was correctly aligned and tested for optimal functionality, checking for leaks and proper closure. The replacement was completed with new plumber's putty and a silicone sealant around the drain to ensure a watertight fit and prolonged durability.