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Old 03-22-2018, 07:05 PM   #1
mtlakejim
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Tank dump lines on HC 381TH

I was under the unit today and took this picture to show how the black tank and gray tank lines come out from under the belly of the beast. As you can clearly see the lines come out almost together. It would have been extremely easy to have tied the lines together so you would be able to dump ALL the tanks thru one hose connection!!! At the very least they could have run BOTH lines toward the back and had them side by side for easy swapping of the hose from one to the other. But oh no Keystone in their infinite wisdom ran one line to behind the rear tire (remember this is a triple axle trailer) and the other line in front of the front tire!!! The two outlets are about 10' apart!!! That means when you pull up to a dump station you have to first dump the black tank then back up, reattach the hose to the gray tank and dump it!!!! This makes absolutely no sense to me. Can anyone on this forum give me a good reason why they would do this? Not to mention how they just left the expanding foam mess. I mean how hard is it to take a piece of cardboard and smooth that foam down while it is still wet?
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File Type: jpg HC 381TH 2018 tank drains.jpg (77.5 KB, 3 views)
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Old 03-22-2018, 08:19 PM   #2
Theunz
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It actually looks like it would of been cheaper to use a Y and just one outlet. Less pipe less valves less cables. Engineers must be spending all their time on bells and whistles instead of craftsmanship and usefulness!
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Old 03-22-2018, 08:30 PM   #3
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Sounds like they promoted one of the Amish craftsmen to Amish designer.
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Old 03-22-2018, 08:44 PM   #4
BuilderBob
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That look like a good project to tiy the two together James that's what I would do! the Engineers and craftsmen at keystone are laffing you know

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Old 03-22-2018, 08:48 PM   #5
mtlakejim
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Originally Posted by Theunz View Post
It actually looks like it would of been cheaper to use a Y and just one outlet. Less pipe less valves less cables. Engineers must be spending all their time on bells and whistles instead of craftsmanship and usefulness!
Yep I am totally dumbfounded by this demonstration of stupidity! On top of this the remote pull for the front gray tank is up by the gray tank outlet but the rear gray tank pull is located by the black tank pull despite the fact that both gray tanks go out the line at the front! Then just to complete their lunacy they put the two rear pulls almost directly behind the rear tire. You know where they are hard to get st and are assured to be whiped out from a blowout!!

You ever wanted to take a so called engineer (and I use the term very loosely in this case) out to the old wood shed?

Can I fix this? Yes. Should I have too? I think we all know the answer to that one!
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Old 03-22-2018, 09:02 PM   #6
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That look like a good project to tiy the two together James that's what I would do! the Engineers and craftsmen at keystone are laffing you know

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I will eventually do just that. But to really do it right I suspect pulling the corplast down and making the tie in on the horizontal above that level. I have been thinking that replacing the corplast with sheet aluminum would be a good idea (granted expensive and time consuming project). Then you could have access hatches in critical areas. I would only go to that much trouble on anew unit that I plan to keep for a long time. What ya think?
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Old 03-22-2018, 09:24 PM   #7
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I wonder what the so called Engineers are thinking about they draw this stuff up it not usability for sure! aluminum would be great. I think you will get a big surprise when you
Drop the coroplast make sure you have your safety glasses on been there!

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Old 03-23-2018, 06:06 AM   #8
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Is this a HC issue? I ask because I have owned 3 Montanas and all of them had the tanks all feed into 1 discharge that exited in front of the tires on the street side. No moving lines required.
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Old 03-23-2018, 06:08 AM   #9
mtlakejim
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Originally Posted by WeBeFulltime View Post
Is this a HC issue? I ask because I have owned 3 Montanas and all of them had the tanks all feed into 1 discharge that exited in front of the tires on the street side. No moving lines required.
Not sure on that one. My previous RVs all had one common line. There is no reason I can see that this one should be different.....

There is a remote pull for each of the 3 tanks. Should also be noted that the indicator lights inside show two black tanks but I can’t imagine that being true???
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Old 03-23-2018, 07:25 AM   #10
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2018 HC 331RL separate valves for shower grey water and kitchen grey water but all three tanks dump from a common location
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Old 03-23-2018, 10:04 AM   #11
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It's not a HC thing you see it on any kind of TH model! I guess they need better Engineers to figure it out. As far as the 2 black tank indicator lights that's in case you had two bathrooms like some BH & TH have. Then you would have two black tanks. Think of that mess!!!! under you 5er James.

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Old 03-23-2018, 05:19 PM   #12
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Quote:
Originally Posted by footz1941 View Post
2018 HC 331RL separate valves for shower grey water and kitchen grey water but all three tanks dump from a common location
This the same on our 2018 HC 330RL
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Old 03-23-2018, 06:06 PM   #13
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Originally Posted by footz1941 View Post
2018 HC 331RL separate valves for shower grey water and kitchen grey water but all three tanks dump from a common location
Same on my 2017 HC 370BR even though the kitchen gray is a real PIA to open/close.
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