If you know anything about Cockers, you know they don't have much in the way of bladder control. Several years ago I adopted a 6 month old cocker who'd been kicked and abused so he had submission peeing problems on top of the usual ones. It took time and a lot of praise but now he rings the jingle bell on the front door, paws the kitchen half-door, or simply sits up, stares, barks, and gives me the evil eye. He is insistent on telling me when he has to go out. He has about a 4-hour bladder and that's tops. My smaller dogs and my big dog can all go for longer times than Riley.
Riley is especially responsive to praise because of his background. He really wants to please. I would think puppies would have similar natures. I did big time praise. In fact, I would bend down and pat him on the head, give him a big kiss, and tell him how absolutely wonderful he was every single time he did any type of business. Over time Riley got it. Riley's smart but he's not a super genius. I would think a Pyr puppy would get it really quick, especially if you added pats and touching.
Hope things have improved! I'm answering this in case someone new comes along....