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 > Grey water disposal revisited

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Deen

Vancouver, WA

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Joined: 12/07/2000

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Posted: 07/04/08 11:01pm Link  |  Quote  |  Print  |  Notify Moderator

cruiserjs wrote:

Nopw all you ranters can argue!
here is what one state says (pirated from another forum/thread);
Quote:
" HEALTH CONCERNS

"Properly treated and continuously monitored gray water can be a valuable and safe resource for landscape irrigation. However, ignoring problems and not checking the system periodically can lead to human health and maintenance difficulties. Misused gray water can spread typhoid fever, dysentery, hepatitis and other bacterial and viral problems.

Disinfection is critical for gray water held more than 3 hours. Health hazards--especially with eye contact-- are present in dissolved and suspended organic material and detergents."

Gray water held more than 3 hours must be disinfected because it contains more harmful bacteria than sewage does. A chlorine concentration of 0.5 ppm will disinfect gray water. As gray water is held overnight or longer, the chlorine slowly moves out of solution. The chlorine in laundry wastewater is too dilute to disinfect a gray-water holding tank." end quote

The key is gray water held for more than 3 hours. There is a lot of difference in using the water in a dishpan and then tossing in out....versus let it ferment in a holding tank for several days.

Those handy with web search - look sup this subject on the EPA web site.

The moral - please don't do it! - Find and use a dump station.


No real argument, around here is plain ILLEGAL to dump any waste water on the ground, even if you own the property.


Deen - Vancouver, WA

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Dayle1

Spicewood, Tx

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Joined: 04/12/2001

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Posted: 07/05/08 11:51am Link  |  Quote  |  Print  |  Notify Moderator

bill h wrote:

Dayle1 wrote:

My unit has 3 tanks, the galley tank and dump valve is totally seperate from the other 2, so how is this different from a tent camper dishpan??


Makes sense, but do you think a ranger or whatever would buy it?


Yes, I have discharged grey water on a hand full of occasions. In National Forest campgrounds where the NFS considered the extra moisture more beneficial to the forest than the negative costs associated with expanding or repairing an overloaded dump station since grey water is generated in a much higher volume than black water. And on volunteer projects with 12-15 other rigs where again, the available septic system could not have handled the extra volume of grey water.

I agree with several posters that noted many houseboats and large pleasure craft lack grey tanks. Last I heard, even places like Lake Shasta was having problems forcing conversions on the boats and providing onshore facilities to accept the grey water. Also saw a new building code document for Flagstaff, Az requiring dedicated grey and black sewer lines for new construction, I'm guessing to reduce water consumption thru reuse and to reduce sewage treatment plant loading.

Regarding the toxicity of grey water standing for more than 3 hours needing bleach, what about every P-trap in every RV and home in the country? Seen any plumbers using full toxic waste outfits while working? Even latex gloves? I worry less about a few gallons of grey water next to a tree than what gets sprayed on tomatoes, spinach and other vegetables/fruit around the world that we all consume.

A few months ago my neighbor had a raw sewage spill a few hundred feet from both his well and my well, so I called the county health dept. Should a backhoe and dump truck be used to haul the contaminated soil away? Should the ground be saturated with 20 gallons of bleach? No, No and Mother nature will take care of the problem were the answers.


Larry Day
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Rubiranch

Salt Lake City, UT

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Joined: 03/09/2004

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Posted: 07/06/08 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

We drained another 80 gallons into a little hole again this weekend while boondocking.


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