Well I use th pee-pee training pads I get from PetsMart 100 in a box for $20.00 (in the catalog.) They are suppose to have a smell that attracts the dogs yet people can't smell anything. The dogs all won't pee anywhere in the house but there on the pads, when they are not outside. Males are hyarder to train because of leg lifting but try the pads. I use vinegar and water if there is an accident with a new dog I'm boarding. It kills any pee-pee odor and the stain too....They also have larger pee-pee pads.