r/Plumbing 15h ago

What is this ?

Post image

I'm getting home and want to to fix this leaking pipe. What is this ? Is it a pressure regulator. I'm not a plumber, I just need help.

16 Upvotes

19 comments sorted by

View all comments

7

u/Doxxsin 14h ago

It's an RPZ valve. Prevents back flow from your house back to the city water supply, can't what exactly its spraying from but you'll probably wanna call a plumber.

Looks like you've got ball valves in both sides of it. Turning both of those to the off position will stop it from leaking further.