nitrohorse wrote:
One is concerned about bacteria swimming against the flow in the drain pipe and causing contamination of the fresh tank.
Got a 1/4" diamater pipe that sticks below the camper, 6" above the pavement, inline with TV and trailer tires.
Pull the plug and it
only takes about 10 min for the tank to drain. After 10 min how does your theory of unable to swim upstream work?
There's a few microbes in the world and dirt on the highway and tires kicking it all up.
There's 70 MPH wind swirls all around the camper and an air vent on top of the tank.
The chance of some dirt and microbes getting inside of the tank is just about about 100%.
I don't live in fear of that and recognize that normally chlorinated water or even the standard bleach treatment will handle it.
But despite what you think- there's a high probability of a little stuff getting inside of the tank for the remaining ?? hours of your trip after the tank drains.