Using orthophosphoric acid can help to break down the stones prior to a flush. You can mix it in apple juice (for added benefits) or you can use it in another fluid if you are concerned with the Sugar in the apple juice. Take a look at the flush that mentions orthophosphoric acid on the main Liver Flush page. Just make sure to rinse your mouth out well after ingesting anything with orthophosphoric acid in it as it can damage your teeth if any is left in the mouth.