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Old 09-25-2014, 07:24 PM   #11
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"They are open to the outside all the time which I don't like. That is one reason why I put a ballcock valve on both of them."

Great idea.

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Old 09-25-2014, 08:24 PM   #12
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I had same experience on mine they are overflow lines

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Old 09-25-2014, 08:47 PM   #13
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My overflows look just like my LP drains as well, just like nbhybrid says. Only difference is location and angle. The FW overflow run kind of parallel with the frame and hang loose. The LP drains come straight down. Both locations are marked with a "Low Point Drain" sticker. The valves for the LP drains are located immediately above in the vanity cabinet. I traced, routed and identified all these hoses the first day I owned the trailer.

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Old 09-25-2014, 09:09 PM   #14
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When I was welding my new mid mount stabilizers on Wednesday I noticed the same thing. Two white tubes, (pex) hanging between the axles. I assumed they were some type of over flow. I didn't even know I had two fresh water tanks until last week.
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Old 09-26-2014, 06:16 AM   #15
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On my 33RLDS the two lines hanging down close to the axles are the fresh water tanks overflow lines.
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Old 09-26-2014, 06:37 AM   #16
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Our 33 RLDS losses 1/3 of our water through those hoses with the siphon effect. I recommend extending them and installing caps so you can stop the flow when your tanks are full if you need/want all your water.

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