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Old 09-17-2015, 01:16 PM   #1
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Tank sizes

I have my new to me 1988 Fleetwood Southwind, and I don't know the real size of any of the tanks.

I have the owner's manual, but it does not list the tank sizes.

Is there an easy way to research this?

I think I have an 85 gal gas tank.

I do not have any idea for the white, grey or black water...

I did find that the propane was a 30 gal tank, based on my last fill up, because it was empty when I filled it. (And they charge by the pound, and it took the same amount of pounds as a 30 gal tank)

I don't want to run the MH out of gas before I fill it.

I don't want to pour a gallon at a time into the tanks.

I am guessing I may have as much as 60 gallons of white water. (based on a note in sharpie on the tank itself about using bleach to clean the tank)

Any suggestions would be welcome.
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Old 09-17-2015, 01:24 PM   #2
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The gas tank is a chassis item, Ford , Chevy, etc.. Need to provide that info or do a Google search. Most MH will have a sheet inside somewhere with most of the info on it, often inside a closet.
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Old 09-17-2015, 03:09 PM   #3
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Thanks Brock,

It is a chevy, with 454 and on board onan generator, (which feeds from the same tank). I thought it is 85 gal, but I do not recall where I saw that.

There is no sheet as you said, but the MH is nearly 30 years old.

I did find the original window sticker in some papers. I do not have that at the moment, but perhaps that data is in there.

I did not get a chevy owner's manual with this coach, but there was a motors or childens type manual in it that I use for data on the 'truck' portion.
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Old 09-17-2015, 05:00 PM   #4
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Hope this might help, I have a 82 PA Chev 454 p 30 Workhorse pretty similar to a Southwind I think. I have 100 gal gas 30 front 70 rear yes onan mine 6.5runs off the rear tank and will shut off at 1/4 tank as not to run the MH out of gas.
Propane - 85lbs
gray - 30 gal
Black tank -20
usually a 10 gallon difference
fresh any where between 51 gal and 70 mine has 61 gal
hope this helps
I forgot, my water heater is a 6 gallon
Tim
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Old 09-18-2015, 06:07 AM   #5
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Thanks Spritz,

Your logic was similar to mine, but sometimes I wonder...

My 34 foot class A is actually over 35 feet long, and seems differently set up than my 28 foot class C. Perhaps this is because this Southwind is a full basement model. I noticed the tanks seem bigger, as they are only about 8 or 9 inches tall, but go all the way across the truck, so Grey and Black water are 8 foot wide.

Also, the Class C had a good sized rear 'truck' tank and an aux gas tank on the passenger side, like yours, which was another 30 - 32 gallons.

This class A only has that one rear tank, but it is very large.

One reason I am looking for tank sizes, is weight. My propane tank is mounted behind the driver station, but all other tanks are just behind the rear axle. The gas tank is between the frame rails under the truck, just above, in the basement, are the grey and black water tanks, and behind that, is a six foot deep white water tank (only 6 foot wide because the other 2 feet is the generator on the other side)

All of this is below the floor in the rear of the MH. That makes for a pretty dense layer of lots of weight, when I am driving with full tanks...
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Old 09-18-2015, 06:43 AM   #6
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97

My 97 Southwind has 75 gal gasoline tank, 30 gal propane, 80 gal. water, and about 50 gallon on both sewage tanks (gray and black).

Yours may be a little different.
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Old 09-18-2015, 08:48 AM   #7
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Boy those are some big tanks. Lots of weight I usually run light my tanks are just above the rear axle. I run light when I have the toad in tow otherwise I run with full water tanks and empty others.
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Old 09-18-2015, 08:12 PM   #8
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Quote:
Originally Posted by mohamer View Post
My 97 Southwind has 75 gal gasoline tank, 30 gal propane, 80 gal. water, and about 50 gallon on both sewage tanks (gray and black).

Yours may be a little different.
Thank you. I suspect this is closer to the type I am dealing with. I am thinking basement models may have bigger tanks on the presumption that the MHs are used for more seasons during the year than other types.
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