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Old 10-18-2016, 02:12 PM   #1
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'14 Thunderbolt 395AMP drain for F water

Cannot find fresh water tank drain hose nor a cap or valve. The red and blue water lines w caps hang down but no drain so far.
Anyone w this exact model able to help?
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Old 10-18-2016, 02:20 PM   #2
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I have a 425 and couldn't find mine at first but it was tuck in the Coroplast and I had to pull it out.


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Old 10-18-2016, 03:59 PM   #3
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egladdin,
You are talking about the black (flimsy) underbelly. Right?
And, was it right with the red and blue pipe, or where?


Thx so much for the help.
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Old 10-18-2016, 07:31 PM   #4
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I have the 380 AMP and it was located over the axle. I also found that I found it when I over filled it. Over the axle was the low point

Tim


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Old 10-19-2016, 02:24 PM   #5
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Found them

Vent just in front of front axle and drain just over front axle. Both to the port side.
thx again
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Old 10-19-2016, 08:34 PM   #6
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I have 2 tanks in my 395. The other tank drain is on the same side as the front tank, but after the 3rd axle.
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Old 10-20-2016, 09:47 AM   #7
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tmilicia,

Thx for input. Never was told there may be 2 tanks. Back to the 'crawl' under, but not till rain stops-next couple days. Will post result in case anyone else wants to know.

Mel
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Old 10-20-2016, 09:56 AM   #8
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tmilicia,

just realized I need clarification. Is first tank drain above front axle area and second tank drain above rear axle area? ( I see no tank drain under basement area adjacent to red and blue drains.).
Did I mention ours is a 2014?
Mel
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Old 10-20-2016, 10:16 AM   #9
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Mine is a 2016. I will take a couple pics tonight of my drain locations for you to compare.
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Old 10-20-2016, 10:22 AM   #10
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Tanks

I have:
1-Black Tank-(Sewer)
1-Gray Water Tank (Bathroom & Shower Water)
1-Gray Water Tank- (Kitchen Sink Water)
All three of these tanks drain to your dump location

1-Fresh Water Tank-(Only drain I have is under the trailer at the twin axles) I also had an overflow hose over the axle too.

Now there is your Hot Water Heater Drain which mine was directly under the floor of the Hot Water.

And My Washer drain does not go into any tank. It goes straight to dump on a totally separate system.

I had to install a "Y" connection to dump the water from the washer.

Just throwing this one out being it just happened to me. MAKE sure all your "P" traps are full of water or you'll get some vented odor back through the pipe into your camper. I also treated my gray water tanks with some type of lemon treatment from WalMart.

Now the order in which the tanks are located is the hard one. I know the pull station has the pull lever as #2 where as the one below it is #1. I can tell you this much you can identify the black water on mine becuase it directly under the toliet.

I hope some of this will help.
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Old 10-20-2016, 10:23 AM   #11
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tuxedo,

I just received confirmation that our tank configurations are the same between your 2014 and my 2016. I will get you some photos tonight.
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Old 10-20-2016, 05:43 PM   #12
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Tuxedo,

Yes, the front fresh water tank drain is above the front axles. The rear tank drain is after the 3rd axle, but before the garage. It's on the same side as the front tank and should be inline with the front drain. I've attached a pic of mine.

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Old 10-24-2016, 11:18 AM   #13
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I know this might work for yours but I had the same problem. When I remove caps fresh water will not drain. The only way I can drain my fresh water tank is to go inside and turn on water pump then it will drain fresh water. Try that and see if that works for you.
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Old 10-25-2016, 12:38 PM   #14
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tmilicia:

Finally stopped raining.
2nd tank drain exactly where you showed. Thx for help.
Do you know gallonage of each?
How are they linked? Seems like one drain (total) would have sufficed.

Mel
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Old 10-25-2016, 12:42 PM   #15
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tuxedo:

Just dawned on me that 2 drains would be needed if there were 2 pickup tubes branched (Y'd).
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