I need some help please. On my new 311BHS I have great water pressure throughout my RV but not in my shower. I've narrowed it down to an issue with the shower faucet Diverter and hose connection. If I detach the shower head hose, I have good pressure but if I put the hose on, the pressure decreases to only allowing a trickle out. I checked the diverter valve by pulling out the diverter cap and rubber flapper to make sure it was installed correctly and both the cap and rubber flapper looked fine. When I put it back together, I get the same problem. I tried a different hose and there was no difference. Do I just have a bad faucet or is something else going on? Thanks!