Cooking and drinking water

Crabbypatty wrote:
I do believe that as that's why are local codes require back-flo preventer's in our exterior faucets and irrigation so nothing goes back into the water supply. I usually squirt the water hookup with a bleach cleanup blast before I connect to it. I'm not a germo-phobe, but what Ive seen at campgrounds, you have no idea what the guy before you did on the hook up or at other sites.

Yes, back flow preventers are installed so water from an external source isn't introduced back into the supply. It's function relies on pressure differentials. It has nothing to do with germ removal from the outside faucet. In a campground setting, there is nothing that will pressurize the water on the outlet side of the campground supply so the backflow preventer is not functional. It is not a germ "filter", it is to protect the supply from contamination. Just because you don't see one on the faucet your hose is hooked to, doesn't mean the supply is contaminated.

You see back flow preventers with irrigation systems because there is sometimes a pressure pump installed. If the flow//pressure is misdirected back towards the supply, the BFP will be functional.

If you're worried that the campground supply is contaminated, run some water out of it before you attach your hose.