Looking for the water pump

Where is the water pump,
We are trying to winterize and are searching for the water pump. My trailer is a 2003,
29 RLS Please help,
Thanks
Francee

On our 29RLBS, from the drivers side, open the side basement door, on the left side, you have the whole house filter, then looking still on the left side, but towards the other side, the pump should be mounted on the floor.

Also, you might want to get one of these, makes winterizing really easy:

http://www.campingworld.com/shopping/item/pump-converter-winterizer-kit/6279

Not familiar with your unit, but I would turn it on, start pumping some water and follow the sound. You fill find it in a storage compartment or somewhere else. My last trailer, it was under the sofa.