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Old 10-01-2017, 03:40 PM   #1
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Low black/grey tank drain

I have a 2018 greywolf 27dbs. I haven't had any problems with how low the sewer drain outlet is, but it is fairly low to the ground, wasn't sure if anyone has had a issue or not. Was thinking maybe about building a bracket around it if people were having problems with it, thanks
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Old 10-01-2017, 08:04 PM   #2
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I have drug the v brackets on the back of our 26RL and haven't got close to hurting the sewer drains. I have been considering doing an axle flip to raise the trailer lately. But it handles so well, I hate to raise the center of gravity.
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Old 10-01-2017, 08:24 PM   #3
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Never drug our 26dbh (and I think it is lower than the 27)and we even have a steep drive way. I do end up with the axle flip for extra clearance and got 5"
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Old 05-20-2018, 06:22 PM   #4
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Hi Derrinlambier, I have a 2018 27DBS and since I got it September 2017, I have been a bit concerned about the low (and downward pointing) drain outlet. Had not had a problem until today when leaving a gas station that had a gravel exit and lots of washouts/potholes.

Even going slow and careful, the drain bottomed out on something. It broke an apparently weakly welded joint on the 1 1/2" grey line, and bent the fitting where the 3" valve is mounted and started leaking. Luckily, the tanks were empty except for the chlorine water I had in the system to sanitize. I ordered parts on Amazon to fix, but i have been under the TT to see if the valves can be relocated. How about you? Any issues yet?
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Old 05-20-2018, 06:43 PM   #5
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That stinks.. I managed to crack my drains on a mini lite and was lucky it was only the gray tank...
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Old 05-21-2018, 08:33 PM   #6
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I havenít had a problem yet, but I watch it like a hawk while driving. I was thinking of actually trying to mount mine with a rubber hose vs solid mount if I do have a problem. That way if it did bottom out would give a lil. Regardless Iím gonna weld a bracket around it to make sure it donít snap off
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Old 05-21-2018, 08:41 PM   #7
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I didn't really think mine was overly low, but did manage to catch it on a mound of dirt once. Other then a little dirt on the pipes I escaped damage.
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Old 05-21-2018, 09:28 PM   #8
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Given the position of the steps, they routed the dump where they did. Out of the tank is a long sweep 90 pointing to the rear of the trailer, then another 90 angled down. I am considering removing their setup and use similar fittings but route toward the front. Even a couple of feet forward and not angled down so drastically will really make a difference I think. I will also have to do a little welding on the step bracket to give room, but I think it will work. I will post some pics once I get it completed.
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Old 06-06-2018, 10:08 PM   #9
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Completed the move...

So, I completed moving the dump values. Long story short, the dump is now 3.25" higher than before, and I moved it 16" forward as well. I think this should work much better! I had to sacrifice the factory double step but I have a single step on order. I may put on a morryde step later. I set the valves back a couple inches so that a sewer hose wont interfere with the step.

I found the tank fittings at Holding Tank Fitting 3" Hub Fitting - Polyethelyne tank to ABS and not very expensive. Got the other ABS fittings at supplyhouse.com since no one in this area carries ABS and I didnt want to use pvc.

The great unknown is what sealant is used on the tank fitting. I could not get a straight answer from 3 different dealers. Even contacted forestriverinc, but did not get a good answer there either. Doing other research on the web, I decided to use Sikaflex 221. I hope it holds up, but will have to see as time goes on.


I am happy to answer any questions if someone wants to take on something like this in the future.
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Old 06-18-2018, 10:18 AM   #10
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Add one more Grey Wolf to the list of a cracked waste lines. I pulled out of my driveway at the wrong angle. The left tire dropped of the curb and the valve unit hit. I popped the glued joint on my grey tank and bent two support brackets. I'm hoping it will be easy to fix. I do like the idea of adding some sort of rubber hose or rubber fitting in order to give a little flex. Just in case. These low waste lines are defiantly a design flaw. This is our fourth travel trailer and never had one with the black and grey drains lower than the safety bracket. The drains valves are the lowest part of the entire rig. Everybody be careful.
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