rburke wrote:
Ok - need to find out about these bypass valves, there is an outdoor shower I have not opened it up yet, will take a look. Thanks!
Yes, some background, when winterizing and running RV antifreeze through your plumbing, the water heater has a set of valves in the plumbing connections to bypass it. Since the water heater can be drained there is no sense in filling it up needlessly with 6 gals of RV antifreeze. So it's bypassed. If you don't turn the valves back when un-winterizing you won't get hot water.
If that is not your issue, are you using LP or electric to heat the water?