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Old 04-10-2012, 04:02 PM   #1
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When did grey tanks start?

Anybody know what year the greywater tanks started?
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Old 04-10-2012, 04:22 PM   #2
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1974 with the exception of the 1973 Excella 500
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Old 04-10-2012, 05:11 PM   #3
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agree

1974 was the year some states got concerned about putting gray water on the ground and Airstream responded.
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Old 04-10-2012, 06:27 PM   #4
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Had a '75 23', and the grey water tank was not big enough to wash you hands and brush you teeth before it was full.
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Old 04-10-2012, 06:32 PM   #5
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What do owners of older trailers do with their grey water?
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Old 04-10-2012, 06:38 PM   #6
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You mean it didn't start when they ran short of black paint and had to stretch it with white paint?
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Old 04-10-2012, 07:04 PM   #7
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The grey water tank in our Argosy is 12 gallons. We carry a 10 gallon blue boy. If we both shower it requires dumping the grey tank into the blue boy in order to have space for doing dishes, brushing teeth etc. It's a minor inconvenience.
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Old 04-10-2012, 08:06 PM   #8
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Forgive my ignorance, but does all the water go into the black tank or can you rote just the gray (not the black!) to an outside dump port and/or blue boy or just on the ground? Or do you have to continually dump the black/gray combo?
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Old 04-10-2012, 08:31 PM   #9
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It depends on what trailer you have. Models prior to 1974 had no grey water tank. Therefore any water used in the sinks or tub/shower went directly out of the trailer.
With the models from '74 on there was an additional tank (grey water) incorporated into the plumbing systems. This tank collected the waste water (grey) from the sinks and tub/shower.
Also included with the grey tank was a grey water dump valve. Which allowed one to hold the grey water in the tank by closing the dump valve.
The black water tank has a separate dump valve.
The two tanks in most trailers share the same dump port or outlet. The place where the sewer hose is connected to empty the tanks.
It is common practice when using full hookups to connect the sewer hose to the trailer then insert the other end into the receptacle at the campground. Once the hose is connected most people open the grey water dump valve which allows the grey water to run directly into the sewer at the campground.
The black water dump valve remains closed until the black water tank is sufficiently full to get a good flow once the black water dump valve is opened.
It is common practice when emptying both tanks to dump the black water first then the grey. That way the grey water kinda flushes the black water out of the hose.
Some of the newer trailers gave a combined tank. Not a good idea in my opinion.
If your trailer is not equipped with a grey water tank. And you don't have a sewer connection handy. Short of installing one, a grey water tank, a major project. You can use a tote. One prominent brand is a BlueBoy. A tote is a portable holding tank most frequently used for grey water.
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Old 04-10-2012, 09:01 PM   #10
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Thanks for that great explanation. We have gray in our airstream but have considered getting a vintage.
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Old 04-11-2012, 01:48 AM   #11
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We have a 67 Caravel, and carry a Thetford wheeled 12 gal portable for grey water. The grey drains from the sewer outlet below the black dump valve. Full hookups are no problem, and having the separate grey tank means wheeling it to the dump station daily, if showering (quick showers!). You get used to whatever routine you establish...We wouldn't trade vintage for anything!!!
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Old 04-11-2012, 02:28 AM   #12
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When we acquired our '53 flying cloud a few years back, the toilet had a short piece of pipe that led directly underneath the trailer. And that was it. We later read an original set of instructions that suggested digging a hole under this pipe and, after every use, throw a shovel-full of dirt into the hole.

During our restoration, we have added a 27 gallon black tank, a 27 gallon grey tank, and a 26 gallon fresh water tank. Some vintage practices need to be left behind as history.
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Old 04-11-2012, 04:08 AM   #13
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Grey water

There has been some talk about changing the name of "grey water" to "wash water" to reflect its true nature and make it less offensive to the more ecologically sensitive people. We started out in tents. Using our dish water to water the bushes was common practice. Walking in the woods and observing animal "scat" is still not uncommon. Maybe changing the name does have make a perception difference. We always had to watch our step on the farm to prevent stepping in "cow pies". City folks might find them offensive. Now days, we carry a blue boy when we use our vintage unit to improve our acceptance in most campgrounds.
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Old 04-11-2012, 04:41 AM   #14
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We have a 1972 Argosy that has NO grey tank. We normally stay on full hookup sites. We have made arrangements with Collin Hyde to replace our belly skin and add 40 gallon of grey tanks. We have stayed over 250 nights in our Airstream over the last 3 years and never had any major grey water issues. Although you have to plan ahead from extended stays.
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