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Old 08-23-2019, 09:26 PM   #1
Junior Member
Join Date: Feb 2017
Location: Eugene, OR
Posts: 3
2004 Dolphin Kitchen sink drain leak.

We have a leak coming from the above the gray water tank when the kitchen sink has a fair amount of water flow out. The repair guy could not see whether the line is split, broken or detached.

Is there a way to access these drain lines without dropping the tanks?

Water isn't getting into any of the basements, just runs out onto the ground at this point.
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Old 08-23-2019, 09:44 PM   #2
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National RV Owners Club
Freightliner Owners Club
Join Date: Aug 2015
Location: Fayetteville, TX
Posts: 194
First question, is your kitchen on a slide out?
If so I can help you with that.
David (AE5DS) & Linda Stall - F452322
1999 Tradewinds 7372 - Freightliner XC - Caterpillar 3126B - Generac IM-72LP
2013 Fiat 500 (Blue Ox) Visit the: National RV Club Website
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Old 08-24-2019, 12:37 AM   #3
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No, we have the model with the lounge slide and the oversize bedroom slide.
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Old 08-24-2019, 09:16 AM   #4
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Workhorse Chassis Owner
Join Date: Sep 2007
Location: st.charles mo.
Posts: 1,482
If it's like my 5355 the drain lines run behind the drawers and over the furnace, On mine the washer hook ups are behind the drawers In the hall and the drain for the kitchen sink tie into that.
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Old 08-24-2019, 08:34 PM   #5
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I had to access the top of my gw tank, I removed the black plastic cover inside of the center bay. The to of the gw tank can be worked on. Us caution with the black plastic panel, it will break if bent to much. Lots of luck.
Just West Of The Pecos
05 Dolphin #5342
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Old 08-20-2020, 08:51 PM   #6
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Join Date: Aug 2020
Location: Kemah, TX
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2000 Tradewinds 7371 kitchen sink drain leak

Same problem as original poster except on a 2000 Tradewinds 7371 with leak between slide out kitchen sink and gray tank. Bath sink and shower do not leak. It is not the flex hose inside cabinet. I have found no way to even see the gray water tank much less get to the piping. Any help please.
2000 National Tradewinds 7371
Freightliner XC
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dolphin, leak

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