Maybe you already are but let the pump run long enough to build pressure in the lines (with all faucets off). Mine takes a while due to all the plumbing but if after 5 or so minutes you open a faucet and still no water or pressure release, then I would say you have a water pump problem.
Fresh tank drain should be visible under the RV (a single pipe sticking down near the fresh water tank).
Doug and Becky Ridgeway
2014 Blue Ridge 3600RS
2014 Ford F-350 CC 4X4 DRW 6.7 PSD