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Old 06-23-2022, 07:44 PM   #1
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Is it ever excusable to dump grey tanks on ground?

As a newbie...thinking out loud while recovering from flu like symptoms in a CG.
Is there a non emergency situation where you would consider dumping your grey tanks on ground? No dump station near? Etc... Is it ever acceptable in a non emergency situation or should it be treated like the black tank?
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Old 06-23-2022, 07:50 PM   #2
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That's a one side street when you don't post your thoughts on the subject

My side of the street....grey is treated like black.
No dumping unless into sewer/septic

Several states it is ILLEGAL
Some states OK

Some CGs encourage it......waste line cap with hose connection/run hose away from site ito bushes etc

Dumping on the ground in/near CG site.........NOT good
Grey tank is NASTY
Rotten food particles, rancid cooking grease/oils, clumps of hair, urine (come on folks pee in the shower), sloughed body skin cells etc

Besidies who wants a big wet messy camp site???
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Old 06-23-2022, 07:56 PM   #3
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There are laws and there are opinions.

There was a time, not so long ago, RV's did not even have grey tanks and they drained right where the RV was.

Would I ever dump gray in a non-emergent situation in a campground, never! For many reasons.

Would I dump gray when boondocking in remote areas? Maybe, I dump a lot of pee (I know not gray) fresh from the tap in those areas. Location matters, next to a water source, never. Into the cow pasture that is full of cow waste, likely.

Like most things, there is not a one size fits all answer.
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Old 06-23-2022, 08:20 PM   #4
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As long as no one sees you do it then it's OK.
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Old 06-23-2022, 08:21 PM   #5
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Sure, in certain places, I have been known to do it where I store our coach in a shed on the family cattle ranch, it can't be worse than what a couple of hundred head of cattle do every day, plus this is a region that gets 5 to 6 feet of rainfall annually which helps dilute any runoff. Of course it is also common in the area to run laundry discharge pipes straight out into a field, and not into a septic system. If I were in a more environmentally sensitive area it would be different.
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Old 06-23-2022, 08:26 PM   #6
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I agree that gray water waste can smell pretty bad sometimes. The only case where I would consider dumping the gray is in a boondock site. No development of any kind at the site, no tables, potties, etc. Then I would dump it on bushes away from the parking pad.

If I were tent camping in the same place I'd dump my wash water on the bushes. Plus while tent camping without any potties you have to deal with the human waste issues too.

In a campground, never. I suspect recently in Yellowstone when a dump station was on a reservation system and campers could not leave due to the washed out roads there may have been some dumping there. There could be extreme cases like that.
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Old 06-23-2022, 08:47 PM   #7
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This was discussed in depth several years ago. There are several states that allow grey water to be dumped. The key is GREY water which is wash water from showers and clothes. As soon as you dump food particles from dish water into the grey tank, it is considered BLACK water by some DNR officials and that is not allowed in some states. However, you are allowed to dump grey water with food particles on BLM land as they do not distinguish between dish water and shower water. One needs to check their area for the correct answer.
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Old 06-23-2022, 09:19 PM   #8
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Not since installing a tank in the truck bed for grey water. We have 46 gallon fresh tank and waste tanks in the truck bed. When the fiver galley tank gets full, we off load it to the grey tank in the truck bed via a 12V pump. That grey tank has a 1-1/4 inch drain line that empties it at the dump station.
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Old 06-23-2022, 09:31 PM   #9
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I really don't have an opinion because this is my first trip. If you want my uneducated opinion I would say it's OK but again...I'm learning here...
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Old 06-23-2022, 09:46 PM   #10
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We make it a point to always wipe down our dishes, pots and pans, and utensils before washing them. This eliminates 95% of the food debris in the grey tank. Since we started doing this we never have any odor from the grey water.
We have once or twice dumped our grey tank in remote areas, but I would never do it in a developed campground.
I can always tell when some previous RVer has, because the distinct, unpleasant odor lingers even after the water has evaporated. Not cool.
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Old 06-23-2022, 11:11 PM   #11
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Az. Legal to water your lawn in the city with it. But no kitchen water can be in it. If you add chlorine to the grey tank a few days before dumping it kills the smell. And chlorine breaks down very quickly.
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Old 06-24-2022, 12:59 AM   #12
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Boats dump gray overboard as standard practice. They have no gray tanks.

Black tanks can be dumped 3 miles off shore.
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Old 06-24-2022, 03:38 AM   #13
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Originally Posted by twinboat View Post
Boats dump gray overboard as standard practice. They have no gray tanks.

Black tanks can be dumped 3 miles off shore.
The OP isn't asking about boats.
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Old 06-24-2022, 05:00 AM   #14
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In the distant era it was pretty common to dump the gray line, especially with popups that were not waste tank equipped. I used a 5 gallon bucket at the outlet then took it into the woods. Everything that had food on it was well wiped down with no wastes being dumped. Black - had a Porta Potti that got dumped at a bathroom or dump station hen necessary. Then we 'graduated' to a wheeled blue tank.

Legal, maybe. Good form - in a CG, no. Woods/boondocks - ya do what ya gotta do.
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