WandaLust2
TN
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We've been working on our 1993 Ford Class-C MH and are wondering how large the black and gray water tanks are for this Dutchman model. Google brings up all kinds of sites to sell or buy one of these rigs, but nothing on tank size or other specs. Where can we get this information from?
WandaLust. Retired. Middle TN
Heartland 2011 NorthTrail 28BRS
1993 Ford Dutchman Class-C
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Handbasket
Asheville, NC
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Joined: 01/17/2003
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Failing getting a better answer, you can come pretty close if the tanks are accessible enough to measure.
For a simple rectangular or square tank, measure all 3 sides in inches. Then subtract ~3/8" from each for wall thickness. Then L x W x H divided by 231 = gallons. There are 231 cubic inches in a gallon.
For irregular tanks, look up 'geometric volume formula' on Google and apply the same technique.
Jim, "Mo' coffee!"
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tenbear
Northern Vermont, USA
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I googled Northtrail 28BRS and came up with this.
Don't know the year but it says the tanks are: fresh water 36 gallons, Black and Grey are 37g.
Edit: Just noticed your signature does not reflect the RV you were asking about.  Just ignore the above. 
* This post was
edited 08/01/12 06:53am by tenbear *
Class C, 2004/5 Four Winds Dutchman Express 28A, Chevy chassis
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skipnchar
Topeka or somewhere else
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Very easy to find out. Time how long it takes to fill a gallon container with water then stick the hose in the FW tank and do the math when it's full. You can do the same thing with holding tanks using the same flow rate.
Not sure there's any advantage to KNOWING though because the knowledge won't make them any larger 
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WandaLust2
TN
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Handbasket wrote:Failing getting a better answer, you can come pretty close if the tanks are accessible enough to measure.
For a simple rectangular or square tank, measure all 3 sides in inches. Then subtract ~3/8" from each for wall thickness. Then L x W x H divided by 231 = gallons. There are 231 cubic inches in a gallon.
For irregular tanks, look up 'geometric volume formula' on Google and apply the same technique.
Jim, "Mo' coffee!"
There is no way we can see the gray and black water tanks. The fresh water tank is under the bed and should be about 40g.
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WandaLust2
TN
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tenbear wrote:I googled Northtrail 28BRS and came up with this.
Don't know the year but it says the tanks are: fresh water 36 gallons, Black and Grey are 37g.
Edit: Just noticed your signature does not reflect the RV you were asking about. Just ignore the above.
We know the size of the BRS's tanks. We want to know the size of the tanks on the 1993 Class-C Dutchman we recently bought.
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WandaLust2
TN
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skipnchar wrote:Very easy to find out. Time how long it takes to fill a gallon container with water then stick the hose in the FW tank and do the math when it's full. You can do the same thing with holding tanks using the same flow rate.
Not sure there's any advantage to KNOWING though because the knowledge won't make them any larger
We want to know the size of the black and gray water tanks in the Dutchman Class-C. We can't see them from underneath. We know the fresh water in the Dutchman is about 40g.
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crasster
Dallas
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To get an accurate measurement, fill 5 gallon jugs of water and fill er up. When full, you will know.
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