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Old 08-07-2019, 04:00 PM   #3
JRTJH
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Join Date: Mar 2011
Location: Gaylord
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The way Keystone documents their fresh water capacity is "total fresh water". That includes what's in the fresh water tank AND what's in the water heater.

Your 19fbpr is listed as 41 gallons total. That's a maximum of 35 in the tank and 6 in the water heater.

Considering how tanks are constructed, about 24" wide, 4 to 6" tall and 48-60" long, if the trailer is even slightly "off level" you won't be able to fill the full 35 gallons and if it's slightly "off level" in the other direction when empting the tank, you won't be able to drain it fully, so there's usually 2 or 3 gallons of "not usable water in addition to the 6 gallons in the water heater. Once there's no water to pump into the water heater, the only way to use that 6 gallons is to remove the anode and drain it out. Typically that's "wasted water" since it runs down the side of the trailer rather than into a usable container.

ADDED: I see that Danny had already answered while I was looking up the specs on your trailer....
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