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Old 02-20-2019, 06:16 PM   #21
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1973 25' Tradewind
Geneva , Florida
Join Date: May 2018
Posts: 43
I have a 1973 Tradewind with no gray tank. I gutted and rebuilt and for some reason that I don't remember now I chose to forgo the tank. I use a blue tote (barker) that I got from Amazon. I had a 15 gallon one and it was ok for just me but it filled up fast with 2 other people using the facilities. And that was even when we mostly dumped our dirty dishwater outside and used campground showers. I now have a 22 gallon tote. Don't get one too large as it will be too hard to try to get it to the dump station. Also make sure you get one that has the metal handle that you can attach to your bumper to drive it to the dump station.
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Old 02-20-2019, 07:00 PM   #22
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1986 34' Limited
1975 27' Overlander
Conifer , Colorado
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I believe adding a grey water tank to an old Airstream will pay back when it is time to sell. All modern travel trailers have grey water tanks. Adding a grey water tank to your trailer is a BIG project, but it can be done. You may have other repairs and upgrades to do while you are at it.

Here is a photo the the grey tank I added to my 66 Trade Wind, and the grey water tank I added to my 75 Overlander.

All for your consideration.

David
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Old 08-11-2019, 04:42 PM   #23
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2018 22' Sport
1972 29' Ambassador
Las Vegas , Nevada
Join Date: Feb 2019
Posts: 83
So color me silly, but I was going thru the owner's manual for my '72 Ambassador, and on page 44 it mentions how you can drain the sink and lavatory into the waste tank. You do this by making sure the drain cap is on and then opening the tank dump valve...
Now it does say that this is not for normal operation, but it is possible to do. Of course I am not sure how you keep the bad stuff in your waste tank to flow up the line...
Anyone ever tried this?
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Old 08-11-2019, 06:33 PM   #24
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1965 28' Ambassador
Oviedo , Florida
Join Date: Sep 2018
Posts: 21
Yes it is possible. However, it is something that is done only if you have no other choice. You will then have to ensure that you did not get any black matter in the gray line. We would not recommend that you use this method.
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Old 08-11-2019, 06:41 PM   #25
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1986 34' Limited
1975 27' Overlander
Conifer , Colorado
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Your lack of a grey water tank drain system was built for a campsite where you can remove the cap and water the bushes with wash water. We no longer to this and it is no longer allowed almost everywhere.

If you leave your drain cap in place and open the black tank valve, you can indeed put gray water in the black tank. When you shut the valve and take the cap off, you have a mess to deal with. Not recommended.

You can purchase a 3" Valterra blade valve mounted to a bayonet fitting that will attach to your sewer outlet as well a provide a fitting to connect your sewer hose. Then shut this second valve and open the black tank valve and fill the tank. When it is time to empty the tanks, connect the sewer hose and open the new Valterra valve and drain the tank as usual.

Maybe your best bet is to purchase a portable waste water tank and drain grey water into that. Then transport it to the dump station. Many folks do this.

David
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Old 08-12-2019, 09:57 AM   #26
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1965 28' Ambassador
Oviedo , Florida
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I have a 65 Ambassador. I converted the black tank to a gray tank and eliminated the need for a black tank by installing a Nature’s Head composting toilet.
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