Pool Main Drain How to remove

[mg0698]

Hello guys, first off I love this community lots of valuable information on here.

Anyways I have a leak in my pool I've checked almost everywhere besides the main drain, My main drain looks like the one in the picture it has screw holes, But i don't see any screws, I want to open it so I can check for leaks. If there is any advice/tips you can give me on how to open it I would appreciate it.

 

[JVTrain]

Is there putty over the screw heads? Seems most drain covers have at least two screws in them. If it has no screws... perhaps they have corroded away the heads? Best bet is to try to pry gently on the sides with a flat screw driver to see if it will pop out. It may have just been cemented/caulked into place.