i have been drinking celery seed tea to clean out my kidneys. you can also drink watermellon juice or just eat them alot. celery seed is pretty common in health food areas of stores or health stores themselves. i put some in a coffee filter closed with a bread tie, then put them in a pan of water on the stove until the water is kinda green, then pour it into a glass and steep it with something to cover the top. then i put in a little sea salt for taste and ice cubes to cool it down.