Hey everyone. I just recently bought a house with a inground 20 000 gal pool. I have been loving it so far from keeping it crystal clear thanks to everyone here and jumping in after a sweaty 12 hour day in 40c heat. I noticed one day when i had my dolphin 300I vacuuming the pool it knocked the main drain cover off. Upon further Investigation there is no screws holding the cover on at all, The Cover says jacuzzi on it does anyone know what type and size of screw i would need? lucky for me my wife is a varsity swimmer so she will have the lung capacity to screw the cover back on.
I also noticed the main drain is plugged I believe from the previous owner probably a leak? will this cause any issues in the future with closing for the winter etc.? I think the main drain is plumbed to the skimmer also because I only have one return line and one suction line in the pump house. would I be correct on that?
Thanks for all the help and keeping my first pool crystal clear!

Thanks for all the help and keeping my first pool crystal clear!