Boomerweps wrote:



Sticks and bricks housing does not STORE waste water, it all gets flushed away immediately. Simple logic.

JRscooby wrote:




In the past many areas allowed grey water to be dumped on ground, where it could be used by plants. But going back forever, one of the first signs of "civilization" was control of human waste. (A century ago, for many homes the control was just a pit, with small building with hole in floor.)
In the modern home, all the waste water goes out the same pipe. The less dirty water helps carry and break down the solids. (We have all heard of the issues RVers have because not enough water in black tank. Think about how fast that issue would develop in house, where waste must move a long ways. Notice when you go to dump station they mix back together?)
It has been a while since I have been anyplace dumping greywater out of RV on ground. I suspect it has a lot to do with understanding what drains from a kitchen sink is pretty dark.
I have heard talk about RVs no longer need 2 waste tanks.

OT. The house where my draft notice found me, toilet, bathroom sink, and Grandma's bathtub drained into a septic system. The field was under part of the area around hen house. (BTW, daytime menfolk where expected to use outhouse) The kitchen sink drained to daylight in the orchard, where chickens cleaned the water. The shower in basement drained into the garden.

Dutch_12078 wrote:



You've never heard of a septic tank? In an RV the waste tanks are vented to the atmosphere, similar to the way residential plumbing is vented with the black and grey often sharing the same vent piping.

Dutch_12078 wrote:



Of course if you're going to be somewhere that allows grey water dumping on the ground, you wouldn't want to mix the black tank contents with the grey. And yes, black and grey contents have been mixed in general usage for centuries, so it doesn't concern me if combining my tanks to extend the capacity helps make to the next dump station.

lonewolf80 wrote:

I personally don't have a problem dumping some or all of my grey tank onto the ground. That water is cleaner than if I washed my RV and the residual water and soap run off. Now, what would stop me is how is if I have a neighbor on that side of my campsite and how close is the neighbor.

I know some folks use the adapter cap that you put on the sewer outlet that lets you attach a small hose too. They'll then crack open their grey valve to trickle drain the tank as it's being used. I actually bought one of those and kept a small old washing machine hose in my rig, but I never used it so it is on a shelf with other RV supplies in the garage.

Lantley wrote:


If both tanks use the same drain. Put a twist on valve on the outlet and close it.
Open both tanks and they will equalize themselves.