Problem with outside taps in my Cougar 5th

This may not help but here's what I found that helps. I have the outside shower on the back side and a cold water connection on the front side. On the outside shower (has both hot and cold) after turning off water -release the pressure on the hose before disconnecting it. This way the quick connect is not under pressure reconnecting it. Never had a problem connecting after doing this. The one on the front is hard to connect under pressure (has no shut off valve). A couple of time I've shut off the main water supply (water pump or city water) release line pressure by opening a inside faucet then connect which made it easy. Mine is hard to connect while the line is under pressure-easy without pressure.