Livewell not draining

[ReelToy]

This is basically what I have except my overflow drain is installed a little higher. All my lines are the same size as yours.Also my lid is factory SeaCraft and does not seal tight. The overflow has a 5 inch drop minimum. My boat sets a little higher at the stern now with the bracket than it did without. Waterline is at the bottom of scuppers. Guess the boat is lighter without all the wet wood.I never tried to use the livewell when I got the boat I had enough water through scuppers. From looking at yours I don't understand why its not working. Thanks