So I was looking around to see how fast roughly my overflow would drain compared to other sizes and I came across this chart. I just wanted to share it since it gave me a good idea and thought it might be helpful to others. Here is the link to the website https://www.hy-techroofdrains.com/water-flow-through-a-pipe/
<img class="" src="https://atlantareefclub.org/boards/data/uploads/hm_bbpui/1120044/Tj4jhkb5sc7nzrfhql7bamydjb7eump0v.jpg[/IMG] alt="Flow rate" width="1001" height="397" />
<img class="" src="https://atlantareefclub.org/boards/data/uploads/hm_bbpui/1120044/Tj4jhkb5sc7nzrfhql7bamydjb7eump0v.jpg[/IMG] alt="Flow rate" width="1001" height="397" />