Congratulations on the new TT. I am not familiar with your particular TT. You can have two different sets of FW drains. One set (Hot water and cold water) pipe drains. They are usually a simple Tee handled device, and you need to pull up on them, not twist. The FW tank drain is usually outside under the TT. The OEM drain looks something like this. The plastic is known to deteriorate and the hand will break off, so it may have been replaced. Most often the valve is located under the TT, attached to the chassis. I have seen them mounted to the side of the TT also if the tank is above the floor, say under the bed, or bench.
As for the pump location. The best way to find it is to turn it on and listen for it. They are always hidden. Most of the time they are right next to or above the tank. So look for the gravity fill port (out side of the TT) and then look inside the trailer near that spot, both sides of the TT in that area. Usually there is a false panel, it is hiding behind. In a New TT, you need a #2 Square drive screw driver to get to it. You need to remove a bench seat plywood top, or there is a cabinet door that is screw shut, maybe you can open the cabinet door, but there is a false panel behind the door. Best thing to do is listen for the pump.