I just started trying to use the Recirc feature on my livewells in my 2000 ZX202. I am filling the livewells up with the "fill" pump and then swapping the valve switch to "Recirc" and turning on the Recirc pump. The water in both livewells drops down to ~ 3" deep when I do this. Am I doing something wrong or is water leaking through my valves or something?