Give your pup time. When we first got Vixen her pool, she didn't care too much for it, except to drink out of it. Now she comes running to the door with a wet back, and we know she took a dip!! We actually moved the pool to an area that doesn't get as much sun, and it is right near the window of out computer room - so sometimes when we are out playing, I knock on the window so hubby can see her "swimming" !!