My shower stall recently leaked down on my ceiling below and when I unsrewed the drain nut from the top I found that the it had 6 holes along its vertical wall - 3 on each side. I have attached a pic of the drain nut and the strainer that snaps on top of the nut. Does anyone have any experience with this type of a nut? Is there a tool available to refit this thing (2.75" inner dia)from the top. I have no access from bottom.
Thanks a lot.