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That is not a valve. That is a test tee with a threaded cap. It can be used as a cleanout so I would definitely make it accessible. I would also plug the hole or get a new threaded cap.
How do I plug it? And what’s wrong with existing cap?
That plug has female machine thread insert so a finished metal cover can be installed after the finished wall is installed.
It’s a wall cleanout.
Looks like the used silicone as pipe dope.
It’s a wall cleanout.
Looks like the used silicone as pipe dope.
I didn't look at the picture close enough. I saw the hole and assumed that someone had screwed a cover on with a sheet metal screw like is common in my area instead of getting a threaded plug like in the picture.
There's nothing wrong with the plug. I didn't look at the picture close enough
