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Old 12-16-2010, 08:11 PM   #1
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Need Winnebago plumbing interputation

I have a 2004 Meridian 36G and every year after winterizing with the pink stuff I notice one water line that never turn pinkish color. In the passenger side compartment just back of the one with the water pump there are 2 water lines running clear across top of it front to back of the coach and one of them you can see that its pinkish but the other one never changes color. I looked at the Winnebago plumbing diagrams but couldn't desiffer any thing on these two water lines. It always bothers me that this line never shows it has pink in it but after 6 winters nothing has ever frozen.

Anyone have any thought on what this uncolored line might be?

2004 Meridian 36G
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Old 12-16-2010, 08:22 PM   #2
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The city water fill line? It would run from the city fill valve to the water tank.

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Old 12-16-2010, 10:12 PM   #3
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Thanks, that makes sense. Would be the only place pink isn't pumped into or through.

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Old 12-17-2010, 12:45 PM   #4
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2nd thought (I know, I shouldn't be having these) since I don't use air to blow out the lines and there isn't any antifreeze pumped through the city fill line to the fresh water tank is it possible for water to be setting in this line? Or does it automatically drain all into the tank by gravity when the city water hose is unhooked?

You'd think I would have been concerned about this 6 years ago instead of waiting this long. Guess if there was any possibility of damage from freezing it would have happened long ago.

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Old 12-19-2010, 09:10 AM   #5
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You may have a little water left in the fill line (at any low point), but it will not be under pressure, or against a valve.
If this little bit does happen to freeze, it will have plenty of room to expand, and wont hurt anything.
No worries.
Bill & Dar - Fulltime
2015 Grand Tour 43QL pulling a 2013 Avalanche Z71
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Old 12-19-2010, 09:23 AM   #6
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I have found my fill line pipe frozen when we prepared for a trip south in January, needed to fill fresh water tank partially.
I now will press plunger in fill valve inlet, remove washer screen, and antifreeze will pump any remaining water out of pipe, just stand back when you push-in on valve release.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
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