While Plumbing Manufacturers International maintains a presence on Twitter and Facebook, the association uses LinkedIn as its primary social media platform. PMI has a LinkedIn company page, which PMI members are encouraged to follow, as well as a group page.
The difference between the two pages is the company page is public and the group page is open only to those who request permission and who are approved to join. PMI grants permission to anyone with a background or interest in plumbing manufacturing while excluding those without this interest who seem mainly interested in marketing their products and services.
PMI also accepts posts from members for publication on its group page. Once joining the group, members need only write a post on the page for approval by the group's moderator. PMI does not accept posts for non-members.