Here you can see my sump and plumbing layout. Two drains with and third emergency. Everything is hard plumbed, keeps it clean and professional looking. Make sure you include unions so you can dissemble everything in case there is a clog.
Top view in the over flow box, one drain is completely submerged controlled with a gate valve. The second drain has a very slow trickle running down it. The third is an emergency if both drain one and two clogs.