Bob, This tank has a plate mounted on the bottom for a keep alive pump but i am taking it out. Other than that, there is no pump built in. It has a hose threaded drain plug that I am going to plumb with a hose Y adapter. One side of the Y will go to my boat's pump to fill and the other will go to a drain hose. I'll add an air pump and change water out versus filter.

The concept on Cumberland with regard to storing bait has changed. Instead of running a filter pump that causes bait to lose scales, thus, a need to filter, do not run a pump, let the bait keep their scales and remove the need to filter. It also means you can spend a lot less on a tank.

This one is insulated and that is a must in the simmer time. Otherwise, the requirements are pretty simple. No sharp corners, condition the water properly, add an air bubbler that helps add oxygen to the water while helping take CO2 out. Change out part of the water and recondition as needed.