11/28/2025
I found a small leak under my sink and realized the old strainer had rusted through, so I grabbed a new one for under $20 at my home improvement store. I remember my dad replacing these. After laying down towels, I loosened the tailpiece coupling nut and used two channel-locks with a little WD-40 to break the locknut loose. Your locknut may be a different style, and you might be able to free it with a slotted screwdriver and hammer, or with a sink-strainer wrench.
Once the tailpiece came off, the old double-cup strainer slid right out. I cleaned the sink opening, added fresh plumber’s putty, pressed the new strainer in place, and reassembled everything with the washers, retainer, and mounting nuts. If that washer isn’t on tight, there will be a leak. I wiped the excess putty, did a quick leak test, and the whole repair took about 90 minutes, saving us a major headache for the holidays. Hope this helps someone out there! Talk soon.