Wingtite - slightly gouged pipe - silicone on O-ring?

[Taki]

Hello everyone,

I have a leaking shower drain, which is not easily accessible from below. I have removed the old brass drain, and bought a Wingtite. Upon inspecting the pipe, it looks like there is a small gouge (probably 3/64" deep), around the area where the O-ring would sit. Now I'm concerned that it would cause a leak in this area, since the O-ring might not be able to seal properly.

My question is, should I put a thin layer of 100% silicone on the pipe, before installing the Wingtite? They recommend using dish soap as a lubricant to help the O-ring slide. I think fresh silicone would help with that as well, and might help sealing the surface imperfection.

Any drawbacks with this plan, or advice?

Thanks

 

[Jeff H Young]

If you are in no hurry swipe across the scratch with silicone let it dry hours or overnight then lube it up with the silicone not excessively and complete install .
now we are talkin less than 1/ 16th inch actually much less .045 inches vs .060 . id say doubtfull failure on this installation