Using plumber’s putty works best for it creates a waterproof seal when used on wet surfaces. In case you find it challenging to reach the underside area of the tub drainage pipe, then your best option will be silicone caulking. Use the caulk to seal the exposed drain area.
How do you install a pop up tub drain?
How do I remove a tub drain and replace it?
How do you replace a rubber seal on a tub?
Why is my bathtub leaking underneath?
If you see water leaking, it is very likely you have loose connections in the drain fitting or the drain trap below the tub. Tighten or repair them as needed. If running water in the tub causes no leaking, run the shower water instead. Cracked or missing caulk around these elements lets water behind the shower wall.
How do you use plumbers putty to drain a bathtub?
What causes a bathtub drain to leak?
Leaks from your bathtub drain can have a few causes. The leak might be caused by a problem with the plumbing below the drain itself, which will likely require a plumber’s assistance to fix. It is possible, however, that the leak is caused by a faulty seal around the drain assembly.
David Nilsen is the former editor of Fourth & Sycamore. He is a member of the National Book Critics Circle. You can find more of his writing on his website at davidnilsenwriter.com and follow him on Twitter as @NilsenDavid.