In this RV howto video Mark Polk, with RV Education 101, demonstrates the Flush King Reverse RV flush valve by Valterra Products. The Flush King provides you with the quickest and most effective way to fill, rinse and remove residue from your black or gray RV holding tanks. NOTE: Always use a nontoxic, white RV drinking hose for your potable water connection at the campground. Take a grey, black or green garden hose along for all other purposes such as cleaning the RV or flushing out holding tanks. You will always be able to distinguish the difference by the color of the hose. **The hose shown in the video is grey.

Happy Camping,
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