Potato Soup without garlic greens

8 cups thin-skinned potatoes , cut into one inch cubes 2 large onions , diced small 2 stalks celery , finely chopped 4 garlic cloves , diced (or more) 1/2 cup[...]

8 slices bacon , chopped 4 medium size leeks , white part only, chopped (about 6 cups) 5 large garlic cloves , chopped small 1 tablespoon fresh thyme leaves ,[...]

8 slices bacon , chopped 4 leeks , white parts only, chopped 4 -5 garlic cloves , chopped 8 sprigs fresh thyme leaves , stripped from stem 1 tablespoon[...]