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 Leak from 2nd floor bathtub overflow
Author: RichRock (FL)

Hello all!
How do I fix a leak from 2nd floor bathtub overflow, which appears to be installed upside down, have a cracked and off center seal gasket?




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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

installing the plate upsidedown just gives you a slightly deeper bath.
about the leak..
the obvious answer is to remove the old gasket and replace it. this is pretty simple if there is any movement in the overflow pipe. try pushing thru the overflow hole with your finger to see if it wll moveabout 1/2 inch.
the gasket is shaped so it catches around the back part of the overflow. the old one should slip off and by folding the new gasket you can fold it in half, insert it thru the hole and maneuver it into place.
easier yet, look on youtube for a bunch of videos..

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 Re: Leak from 2nd floor bathtub overflow
Author: North Carolina Plumber (NC)

I can see the edge of the brass overflow riser so the gasket wasn't designed to wrap around it. Just reach in there with a screwdriver or such and peel the old gasket out of the way, carefully insert the new gasket thru the overflow opening in the tub and place it in position, replace the cover and tighten the screws and you're finished.

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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

North Carolina Plumber, if you look at the pictures from the back side you can clearly see the gasket does wrap around the brass flange. this of course has nothing to do with the seal, it just holds the gasket in place.
but as you say, pick it out with a screwdriver and slide a new one in. the new one does not need to be 'captured' by the flange, it just need to be the same diameter and the same bevel.
just gotta be careful the new gasket doesn't slip down as you are tightening the screws.

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 Re: Leak from 2nd floor bathtub overflow
Author: RichRock (FL)

The overflow pipe will move about 1/4"-1/2" but the gasket looks like it was glazed over along with the tub making it "hard-coated", for lack of a better term and not very bendable. That said, how would I find replacement with same diameter and the same bevel, if the gasket gets destroyed picking it out?

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 Re: Leak from 2nd floor bathtub overflow
Author: North Carolina Plumber (NC)

The diameters are usually close enough to work, get one that's about 5/8" thick on one side and about 7/16" thick on the other. The thick part will face down when you install it. You could measure the tabs on the brass overflow that's sticking thru the tub, as long as the gaskets opening will fit over them it'll be fine.
I agree with Packy 99.9% of the time, but I'll wager that the gasket does not fit over the flange of the overflow. I think it's just a flat gasket . It looks like the wall has been opened up there before, what is that black thing covering the opening ?

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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

North Carolina Plumber, i think you are going to win this wager. that gasket is foam rubber. some gaskets (like gerber) are soft rubber that stretch over the flange. foam would not.
just in case you are wondering... that 99.9% number is not unique to me.. my wife DISagrees with me 99.9% of the time.

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 Re: Leak from 2nd floor bathtub overflow
Author: RichRock (FL)

Ok, 5/8" thick on one side and about 7/16" thick on the other...Measure the tabs. :thumb:

Which part is the flange?

If you're referring to this black thing, I believe that is the back of the gasket.

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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

the flange is the part that the bolts screw into.

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 Re: Leak from 2nd floor bathtub overflow
Author: RichRock (FL)

That black thing was the back of the gasket...Here's what's left of it and a new view. Who wins this wager? ;-)
It doesn't appear that anything special was done for the tabs, so why measure?





Edited 2 times.

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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

i tip my hat to my friend from NC..
now, be sure to clean any loose washer pieces from the area. replacement will be a piece of cake..
tiny bit of grease on the screws so they go in easier..
lastly, you can put the overflow plate back on upside down if you want a 1 1/2 inch deeper bath or just put it with the slot on the bottom. makes no difference to the seal..

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 Re: Leak from 2nd floor bathtub overflow
Author: RichRock (FL)

The only loose piece from the area is one missing piece that completed the gasket circle but that fell behind the wall, out of reach. I'm still confused about the tabs...There doesn't appear to be a notch for the tabs, on the old gasket so what am I measuring regarding the tabs?

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 Re: Leak from 2nd floor bathtub overflow
Author: packy (MA)

just measure the OD and the ID. or just bring the old gasket along. there is enough there to match
this what you want..

this is one with tabs... you don't need it..

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 Great, Thanks! I appreciate it! :clap:
Author: RichRock (FL)

Great, Thanks!
You've both been very helpful, I appreciate it!



Edited 1 times.

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 Re: Leak from 2nd floor bathtub overflow
Author: PlumberLoren (CA)

I would not install the chrome plate upside down. The overflow is there for a reason. If someone forgets and leaves the tub running, you will have a little more time to turn off the water before it overflows, that is if the overflow will empty as fast as the tub is filling. Hope this make sense.

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 Thanks to all! :cheers:
Author: RichRock (FL)

I agree...
Installed as intended...
Thanks to all!



Edited 1 times.

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