what do you feed him on, some of the cheaper dry foods contain a lot of cheap fillers and not that much meat and can make a dog bloated...if feed iams or good quaility greyhound foods the dog needs less at a feeding and should have smaller stools and not go so often... lurcher types tend to have smaller stomach capacity and s###t a lot more often than some other breeds .. prehaps small meals spread out a bit more often might do the trick jmo cheers