Lower your volume

Lower your volume
 

John lives on campus, but since his room is near the pantry, where people sometimes gather to chat with each other even at night time, John and some other people living in rooms in that part of the building find those chatting people disturbing. Is it grammatical for John to say this?

-Can you lower your volume? It's night time already, and what you're doing is really disturbing.

... find the chatting disturbing.

-Can you lower your volume? :thumbsup:
It's nighttime already ...

Thank you~