Yes you can flush out gall stones.
I have heard of about 20 different verities, some work better than others.
The gallbladder can hold about 20 stones depending on size. The liver is where the stones first start forming than move to the gallbladder to wait for removal, with the bile when you eat oils and fats. The liver can hold hundreds of stones. If you do a gallbladder flush the stones from the liver will come to take their place.
I recommend a liver flush. The one I did is simple, has many details that need to be followed exactly for best results. I have done the flush 3 times and got out stones each time. I have gotten out over 300 stones, 4 the size of a Brazil nut in the shell, most pea to sand size.
I softened the stones with vegetable juices before doing the flush. The flush takes over night, though softening the stones takes days (if the stone stay in one place to long they will attach to the lining of the liver or gallbladder).
Cost is low and can be purchased at the grocery store, most if not all, you have in you kitchen, unless you never cook at home.
If you are interested in the details you can email me ftsgrs06@yahoo.