Quote:
Originally Posted by Knights300ml
Please pardon my ignorance as my trailer is first I've owned with black tank flush and i was under the impression that it was a completely separate inlet line than fresh water fill/city connection and only runs to black water tank so I do agree with separate hose I'm not grasping how it would back flow to fresh water tank?
|
The black tank flush system is not connected to the fresh water tank and that's not the question that's being discussed. The discussion centers around connecting to the faucet in the campground and whether, if the black tank flush system might backflow, whether it would get "poo water" as far up the hose as to contaminate the campground faucet. If you've ever been around some of the "older parks" with less than perfect plumbing, you've probably walked in mud to get to the dripping campground faucet to connect your hose so you can use the "city water feature"... Invariably, that faucet isn't in one of the white, lighthouse looking things, but is stuck up, out of the ground on the end of a half inch or 3/4 inch iron pipe, surrounded by a few rocks and lots of mud. Most of them, in that condition, won't turn off and I question whether connecting my hose to it might get mud into my trailer plumbing system.
Given that kind of "full hookup site" in an older campground, without an anti-siphon valve and/or a backflow device, the question is, "could" (not would) the "poo water" flow down the hose far enough to get "poo" on the threads of the muddy campground faucet..... The answer, if things failed to function, then yes, it could possibly backflow that far.... The next question, "if I'm using the same hose, then connect it to my city water inlet, (either here or at the next campground) am I going to have "poo water" that was left in my hose being pushed into my camper water supply? The answer to that, is, "If there's crap in your hose and you connect it to your city water inlet and turn on the campground faucet, you'll push "crap" into your trailer plumbing and the coffee likely will have a distinct aroma, probably not that of "freshly roasted beans".....