I use a tote like that, but i use suction cups to hold on my pump sprayer. That way if its heavy and i want to drain it i can put the pump in the tote and the sprayer in the lake and drain it. Great idea!
Just a tip for u as well. I mounted a clamp type holder on the outside of my boat to hold the pump underwater in one place, that way when i fire up the motor i dont have to worry about turning it off and putting it in the boat.
I used a cb raido mic holder and my pump slides and locks in place on it. I mounted it to where it is about 3 inches under water off the side of my boat. I also drilled a hole trough the back of my boat and ran a 1inch flex pipe for my drain. I used threded couplers so i can remove it and screw a cap on it if i dont bring the livewell.