Atlee wrote:
Can you and any other poster explain to me how water laced with fecal matter can flow back up the over 2.5 feet of water line, out the back of the trailer which is nearly 4 feet off the ground, back through the water hose and into the campground water system?
I understand that a vacuum on the campground water system could suck fecal laced water out of the black water tank. What I do not know is how this could happen unless the black tank sprayer is completely submerged in the fecal laced water. Is this not so?
If it is so, then why would anyone, using any common sense, hook up the water hose to the black tank flush system and open the spigot while the black tank is full? That sounds like someone who wants to over flow their toilet in the bathroom.
agesilaus wrote:
When you all come down with gastroenteritis (or worse) you'll spend more than $50 not counting your lost time. That backflow preventer is not there for cosmetic reasons.
Having been in the food industry and heavily involved with Health Departments my whole life, you do not need to have the end submerged when the negative pressure happens. All you need is some droplets or "chunks" somewhere in the line to get sucked back into the main water lines. It is surprising how very little is needed to make many other people ill....
