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Old 12-17-2015, 12:55 PM   #15
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1977 Argosy Minuet 6.0 Metre
Colorado Springs , Colorado
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I always travel with a full tank of water, 25 gallons for my Minuet. That way I can change plans along the way and not worry about getting water.

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Old 12-17-2015, 01:09 PM   #16
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2009 28' International
Pacific Palisades , California
Join Date: Dec 2009
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We tow as empty as possible at all times. A lot has to do with your TV and the loaded weight of your trail. Water weighs about 8lbs/gallon, so each of our 40 gallon tanks would hold approximately 320 lbs when full, for close to 1000 lbs all up. With our smaller engine, I can feel the difference even with one full tank, let alone three.

So to reduce load on tires and axles, even though we're within the limits, and to make things lighter for our engine and transmission, we usually have only 1/8-1/4 in the fresh tank with both waste tanks completely dry. If we're going to boondock and we know where we're going, we'll re-empty the waste tanks after a day's travel, and fill the fresh right before we head off road. We also carry collapsible water tanks in the bedroom wardrobe, and fill up these small tanks totaling another 12 gallons and carry them in the Sprinter.

If we have no idea where we're going that day (very rare!), we might carry as much as 1/2 tank. But we know that when boon docking, even if we both shower, we can make do on 5 gallons a day, so not too worried if we have anything over 1/4 tank when we start out in the morning.

So--t0 wrap it up--depends on your loaded weight and your tow vehicle's capabilities.

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Old 12-17-2015, 01:11 PM   #17
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I don't yet own an Airstream but, when I leave home in the rig I do have, I always take a full tank of my local water. Here on Long Island, NY, we're blessed with EXCELLENT water. I'll take the small hit in fuel economy to know that I have great water readily available. Before entering FL, I try to find a source of "good" water and fill my tank. My experience is that FL has some of the worst water in the country.

I do "hit the road" with EMPTY gray and black water tanks
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Old 12-17-2015, 01:51 PM   #18
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2006 19' Safari SE
Tucson , Arizona
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Always travel with a full tank .. but then the tank on a 19' Bambi is not that big! .
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Old 12-17-2015, 02:03 PM   #19
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2014 25' Flying Cloud
Herkimer,NY , soon to be Keswick,VA
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We usually have the tank full. Helps with stability and nice to be able to use water when we want. When we are home I drain the fresh water tank, then sanitize, leaving a residual chlorine level in the tank. Repeat once or twice before we leave for a trip.
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Old 12-17-2015, 02:04 PM   #20
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2016 25' Flying Cloud
Jupiter , Florida
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Not all of Florida

Originally Posted by NY24 View Post
Before entering FL, I try to find a source of "good" water and fill my tank. My experience is that FL has some of the worst water in the country.
Not all of Florida. We have a very good water system in Jupiter, which utilizes both reverse osmosis and nanofiltration.
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Old 12-17-2015, 02:14 PM   #21
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1987 29' Sovereign
Tampa Bay , Florida
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Do You Tow Your AS With A Full Fresh Water Tank?

Originally Posted by SeaLevel View Post
Not all of Florida. We have a very good water system in Jupiter, which utilizes both reverse osmosis and nanofiltration.
Same improvements here in the Tampa Bay Area.
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Old 12-17-2015, 02:59 PM   #22
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Greenwood , Mississippi
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Sometimes. It seems to tow a lot more smoothly with a full water tank.
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Old 12-17-2015, 03:04 PM   #23
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2014 27' Flying Cloud
Stowe , Vermont
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Most of the time when we travel it's on multi day trips, so having a full fresh water tank is the way to go for us. 1. We like using our bathroom rather than a highway rest area. 2. We can take showers when needed. 3. We eat using our galley. Many of our nights are at Walmarts, Cracker Barrels and truck stops. When we need dumping tanks, more water, etc. it's on to a campground.
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Old 12-17-2015, 03:15 PM   #24
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2014 30' Classic
Princeton , Iowa
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I need you as Bar Tender, I can only get a pint out of a pint. I travel with what ever is needed in my tanks.
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Old 12-17-2015, 03:32 PM   #25
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Greensboro , North Carolina
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We've learned that a full water tank is (for us) the way to go. We can hang in with marginal everything, EXCEPT water. So, unless there's some overriding reason not to, we pull out with a full water tank every morning we're on the road.
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Old 12-17-2015, 03:41 PM   #26
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1977 Argosy 28
Euless , Texas
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travel with water in the tank

I always travel with a full water tank and empty black and grey tanks. My water tank is in the front, black and grey are behind the axles and my tongue weight is on the light side.

I have camped at 2 campgrounds where the water pressure was so high it caused problems even with a pressure regulator on the hose. At one they even used it as a reason to try sell regulators. I don't know how high it was but the pressure defeated the hose regulator, the pump check valve, filled up the water tank and water was running out the fill door. It also bulged the reinforced flex hose to the pump and started leaking at the connections.

I no longer hook up to city water and just refill the tank with the hose when necessary and run off of the pump. I like water from home better and we practice water conservation even with hookups which makes it 2nd nature when we don't have them.
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Old 12-17-2015, 03:54 PM   #27
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2007 28' International CCD
Springfield , Missouri
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A Airstream is designed to tow with a full tank.
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Old 12-17-2015, 04:01 PM   #28
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2013 27' FB Eddie Bauer
Salado , Texas
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I have checked mpg with full and empty water tanks on my 27' Eddie Bauer and found no measurable difference. I also have found that sometimes having that extra water is a really good idea. We had a breakdown and spent three days in the vacant lot next to the dealership. If we had been traveling with empty tanks we would have had to spend them in a motel, eating in restaurants. Instead we were comfortably in our "silver Twinkie" (as my wife calls it) eating home cooking and enjoying the experience (relatively).

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