Fire sprinkler system outdoor items Post date Home › Forums › Materials, Trades › Fire Protection › Fire sprinkler system outdoor items This topic has 0 replies, 1 voice, and was last updated 5 years ago by atuter. Viewing 1 post (of 1 total) Author Posts August 30, 2018 at 12:09 pm #79 atuterKeymaster For the sprinkler system, make sure that the outdoor water motor operated or electrically controlled bells are waterproofed and guarded Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In → Earthwork