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Old 02-24-2024, 10:00 AM   #1
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1976 Argosy 28
Sherman Oaks , California
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What is this tube? 76 Argosy

Renovating 76 center bath Argosy 28' I've been trying to no avail figure out what this pipe is. It wasn't connected to anything at one end but seems like it's attached to something on the other side. A different pvc pipe vents up to the roof. Is this an original part left behind? The gray tank looks to be sitting on a sloped pan maybe for overflow and this tube snakes behind to an area I can't see.
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Old 02-24-2024, 10:22 AM   #2
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my 75 had a pipe like that attached to a fan with a switch mounted on a wall next to the toilet. It is the "fart fan"...
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Old 02-24-2024, 05:40 PM   #3
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It looks like it is probably the original heat hose going to the gray tank. My 75 24ft has the same thing. Black tank and gray tank both get some hot air.
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Old 02-24-2024, 11:20 PM   #4
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definitely heater hose to heat your belly tanks. kurt
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Old 02-25-2024, 06:52 AM   #5
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2001 19' Bambi
Beaver Lake , Arkansas
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AS encloses the waste tank/s inside the belly skin, and there is usually a duct from the propane furnace that conducts hot air into the belly to keep the tanks from freezing. On my Bambi it disappears under the subfloor below the bathroom sink, and the return air is vented out of the subfloor under the refrigerator cabinet via a storage compartment with a false floor. When I was installing new vinyl flooring I first stuffed this vent with fiberglass insulation before I figured out what it did and removed the fiberglass. You appear to have something similar going on.
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Old 02-25-2024, 09:22 AM   #6
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1972 23' Safari
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This is the fart fan for sure! There is one in my "72 Safari. But I never use it, I don't FART! ha ha .
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Old 02-25-2024, 10:27 AM   #7
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thats a hose that blows heat from your furnace to keep you water tank and water pipes from freezing
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Old 03-03-2024, 09:35 AM   #8
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Elgin , Texas
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Auxillary hot air hose to push hot furnace air onto the tanks.
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