Possible to replace the shower drain gasket/o-ring from above?

Old 02-28-23, 10:26 AM
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Possible to replace the shower drain gasket/o-ring from above?

The second floor shower drain appears to be leaking water from the flange. Poured water directly into the pipe no leak, so probably the sealing gasket has gone bad. Just wondering if the this specific flange can be replaced from the top? Or is drywall ceiling cutting needed on the first floor. Thanks.


Last edited by PJmax; 02-28-23 at 08:12 PM. Reason: resized pics/expanded-labeled one
Old 02-28-23, 12:10 PM
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Most I have seen do the sealing from the bottom side where the drain can seal with the waterproofing of the shower. The drain you see in the shower doesn't really play a part except to help hold it in place. You can try unscrewing the internal part to see if you get access to an gasket. You may get lucky.

Most often I've seen leaks come from minute movement in the shower pan. With use and flexing over time either the nut or bolts underneath work loose or the connection to the shower pan is broken. In each case I attack it from below. Luckily your ceiling is smooth finish so it's relatively easy to repair compared to a textured finish.
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Old 02-28-23, 08:32 PM
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A is the flange
B looks like a lock ring
C looks like a gasket
D looks like the ABS pipe.

Is this correct ?
Does the grill thread or snap into A or B ?

A typical problem is the pipe is cut too short and presents a sealing problem.
I was looking thru different shower drains and it looks like the one in the link below is similar to yours.
You need the tool to remove/tighten the lock ring.
The lock ring may be able to be tightened.
If not you'd need to take it out and remove the gasket for replacement.

Oatey shower drain video
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