Flush Out All RV Pipes and Water Heater. Once the fresh water tank is again filled with fresh water, it is time to repeat just about the whole processâto flush your water system with fresh water. Be sure to turn off the outside source of fresh water, and be sure that your RV water pump is still turned on.
That doesn't allow enough time for bile to break down completely. (Bile is a bitter fluid produced by your liver. It is discharged in the small intestine when it's needed to digest fats.) Other causes of green stool in adults: -You've been eating leafy green vegetables (excellent for your health). -You consumed green food coloring in cakes, flavored drink mixes, cookies or popsicles -You're taking iron supplements. Diarrhea may also cause green stool.
Causes of green stool include: 1  Diet high in green vegetables such as spinach. 2  Food dyes. 3  Diarrhea. Indomethacin â a nonsteroidal anti-inflammatory drug.  Iron 1  supplements. Medroxyprogesterone (Depo-Provera), a contraceptive  drug.