Were you hooked up to city water? If so, you don't need to use the water pump. If you were not, had you sanitized and filled the fresh water tank? What happens when you turn the water pump on? Do you hear a noise? There is usually a switch in the bathroom and another one in the kitchen.
Hi Keeper and welcome to the RVUSA Forum. Like Becky said, the water pump is electric. You should have a switch somewhere in the coach. Mine is located on the wall next to the readouts for the holding tanks, propane and fresh water. Wherever - you turn the pump on and you should get water, or at least noise, if the pump is running. If you don't hear any noise, the pump fuse could be blown. If you hear noise but get no water, then fresh water tank could be empty. Hope this helps some - good luck.