Macerater tiolets

[dtcerrato]

Imho separation of gray & black tanks is a must! It's pure advantage to have them separate and to be able to flood flush grey into black as an option. On our acreage we always dump gray. When we were boondocking on our Alaska property establishing our utilities the grey water was feeding the garden. Black - not so much! Black needs to be separate. In some instances we dump our grey and utilize both tanks for black. Ya just can't dump black anywhere like you can grey. We also run our grey washing machine waste on the ground in our own forest - it relieves the septic. Black not so much... That's our story & we're sticking to it. 

[6805eagleguy]

If you are planning to dump gray to the grass, be aware that the practice is not allowed in most places/campgrounds/etc. You can do it on your own land, but even then the practice is questionable unless it's done correctly.

Just do it very very quietly lol

[luvrbus]

They allow dumping of grey water in most US Government Bureau of Land Management  parks here in  the Southwest

[windtrader]

Mine has separate grey and black. Open valve between between grey and black flushes grey into black, black has valve to dump. Never thought about dumping grey directly, could add a T-valve between grey and black easy enough.


What I like is the pooperator like Dave shows. Who needs a dump station, just run the hose into any toilet and pump away. lol

[richard5933]

They allow dumping of grey water in most US Government Bureau of Land Management  parks here in  the Southwest

Not everywhere. For example, Arizona apparently has regulations prohibiting the dumping of gray water, regardless of whether on BLM land or otherwise.

Besides, I've seen gray water that was just as stinky as a black tank. Not sure I'd want it dumped anywhere near where I'm camping/hiking/etc.

I'm sure it's done all the time, but that is a separate conversation than whether it's permitted.

If one had a combined gray/black tank, it would still be possible to use a diverter to send the gray water to the ground if desired. Would only take a few extra pieces of plumbing.

[windtrader]

If one had a combined gray/black tank, it would still be possible to use a diverter to send the gray water to the ground if desired. Would only take a few extra pieces of plumbing.

Now, that sounds interesting, how does some pipe separate the poop balls from the sink water?

[richard5933]

Not sure if it would work on all installs, but it seems pretty simple to have all the gray water drains go to a common pipe before feeding into the tank. A simple diverter valve on that pipe could send the gray water to the ground before it ever hits the tank.

[dtcerrato]

Not sure if it would work on all installs, but it seems pretty simple to have all the gray water drains go to a common pipe before feeding into the tank. A simple diverter valve on that pipe could send the gray water to the ground before it ever hits the tank.

Thus the reason for separate grey & black tanks. Our grey tank has three taps - bath sink, shower, kitchen sink in different places. no need to reinvent the wheel - separate tanks with the ability to dump either or flush one with the other in any order although we prefer to flush poopy with gray water. If you're gray water ever is stinky - 1) not using enough soap, 2) it's sitting for way too long. 

[Lin]

My first RV had separate tanks and it worked fine.  The first bus I bought had a single tank but had a gray water bypass that allowed you to send the gray water into the tank or out that drain valve. I found it just as good.  This bus has a similar arrangement and it works fine.  If I do not have hookups, I will divert the gray water out a hose that feeds some local shrubbery.  If I did have hookups, I used to let the gray drain into the sewer and dump the black as needed.  Now I tend to let the gray drain into the black and just dump more often, but with excellent flow.

I do have a macerater that has the mounts to attach to the drain valve.  I use it very rarely. I have to fill it with oil after using it so it won't be frozen the next time a pull it out.  It's just not as easy as the larger sewer hose.

[Dave5Cs]

What I like is the pooperator like Dave shows. Who needs a dump station, just run the hose into any toilet and pump away. lol

Never done the toilet with the hose. At home when we come in I just pull off the sewer cap cleanout fitting and use that. On the road any dump station works. In an RV park in Missouri they had signs that said please let your grey water only drain to our trees and planting areas.

It is easy to take the P-trap off the shower drain and get the type with a threaded fitting on the lower side of the trap. You put in a pex or similar fitting to accept a hose and install a solenoid with switch near the shower. When you take a shower just hit the switch and the solenoid opens and the shower water drains to the ground of hose if you want it somewhere else.
When at friends Mooch-docking there is always a sewer Cleanout in the front or side yards generally in the bushes and that always works well.