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Old 02-08-2014, 03:09 PM   #1
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cincinnati , Ohio
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Tank sizes for a 1978 20 foot Argosy?

My recollection is that a 78 Argosy 20 footer (not a minuet) will have a grey tank. What size is it though? Also curious to learn the size of the black and drinking water tanks.

Going to look at one soon and would be using it for some boondocking over the summer in the desert for 4-5 days and will be using it every year for a four day boondocks in TN.

I realize there may be issues all around, the floor, axle will need to be replaced a/c would need to be installed, univolt replaced along with the battery not to mention propane tanks and regulator, curtains, cushions or repairs to the fridge or hot water heater etc. I'll be going with the checklist and an open mind on leaving if it ends up being too expensive.

But before I spend too much time, I want to be sure that at least the toilet will be functional for 2 men for the full time, along with holding dirty water from washing dishes and perhaps a quickie shower.

Thanks for the help.

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Old 02-09-2014, 07:40 AM   #2
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1978 Argosy Minuet 6.0 Metre
1966 17' Caravel
Las Cruces , New Mexico
Join Date: Feb 2006
Posts: 481
I doubt the shower goes to the gray water tank and the capacity is likely to be about 15 gallons for the tank. 12 - 15 gallons for black tank. Better figure on a blue boy as the capacities in the smaller model trailers are not that large. The water supply tank is about 30 gallons.

1978 Argosy 6 Metre Minuet
2006 Toyota Tacoma
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Old 02-09-2014, 08:39 AM   #3
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1974 Argosy 26
Morrill , Nebraska
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The shower does go into the grey water tank. My '74 has a 12 gallon grey water tank and a 12 gallon black water tank. The fresh water tank is 30 gallon.
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Old 02-09-2014, 09:50 AM   #4
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
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My '74 20' Argosy has a 12 gal black water tank and a slightly larger gray water tank, I think 14 or maybe 15 gal.
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