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Old 05-01-2019, 12:03 AM   #1
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Brand: Thor Motor Coach
Model: ACE 30.4
State: West Virginia
Posts: 94
THOR #8716
Under the slide

I have a reoccurring issue with leaking under the kitchen sink in our 2017 30.4 ACE. The drain from the sink has a lot of strain on it when the slide is retracted and has come apart several times. I need to reengineer how the drain runs from the sink to the grey tank. My question is, what is the piece of canvas that in the access opening under the slide? Is it supposed to cover the opening when the slide is open? It bunches up and binds some of the wires and hoses when the slide is powered closed. Iím seriously considering removing it. Thanks
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Old 05-01-2019, 03:00 AM   #2
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 918
THOR #2631
Sounds like the drain lines can be a particular problem in many coaches where the drain is located on a slideout. I think the lower slide sweep is important to retain for keeping out dust, water and most small critters. Your coach is not very old so the sweep should still be in good condition if installed correctly. Do you have enough room/slack to lift and support the hoses etc up off the floor away from the sweep action taking place? Sometimes just getting access to make changes is the worst part. Attaching some other folks/coaches having leaks caused from flexing drain hoses in kitchen slides. Someone suggested using flexible pool hose as an alternative flex drain hose. Good luck. Hope my link works.


Kitchen sink flexible drain hose replacement - iRV2 Forums
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Old 05-03-2019, 01:51 AM   #3
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Brand: Thor Motor Coach
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THOR #8716
Javelin: Thanks for the reply and the link. I can access the hose and tank connections by removing the storage area floor under the sink and lifting it up. The stiff hose and the fitting going into the grey tank are very accessible. After looking at the link and what others have to work with, Iím more fortunate than most. The elbow that connects to the straight pipe going into the grey tank was just barely connected. Glue was the only thing holding it there. It wonít go on any more due to a support bracket that is in the way, of course it came off when the slide was retracted. I canít get any more drop in the spa hose because it has to lay under a support for the sink floor. Using swimming pool tubing looks very promising. I called Thor and asked the rep if he knew what the canvas was supposed to do. He had no idea what I was talking about and asked for some pictures.Click image for larger version

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Old 05-03-2019, 03:24 AM   #4
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
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THOR #2631
Wow you do have easier access compared to some other coaches. I was wondering (usually thatís dangerous) as a back up option (if other hose types are still causing you problems), if using reducer adapters at the end point stock pipes and a smaller diameter hose in between to match the reducers, might allow even more flexible retraction of your slide and put much less strain on the end point stock piping/joints. Might also allow the smaller diameter hose to be lifted off the floor and strategically fastened up out of the sweep interference zone? Of course you donít want to go too small in pipe size or you would have a very slow drain.
I assumed the sweep material you mentioned might just be a current install material for your coach year.....but maybe they gave you a stand in solution that is not normal factory. I am not sure what my older ACE has for its slide sweeps, but I donít think they are canvas (can't recall). I think they were more like a large flexible flat rubber mouldings.
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Old 05-03-2019, 04:58 AM   #5
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Minnesota
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THOR #7948
We have a Hurricane 29M which, I believe, has similar sink to gray tank plumbing. In our coach, the elbow above the gray tank swivels (turns) as the slide moves in or out. The bag is supposed to help close the rectangular opening the gas, electric and plumbing lines run though as the slide moves. We could not keep the bag from snagging and binding up as the slide moves. So, I have removed the bag and wrapped the gas, electric and plumbing lines to protect them as the slide moves. I fill the opening left by removing the bag with styrofoam held in place with Velcro when the slide is open. The first photo is looking down from inside with the slide open. You can see the black swiveling elbow in the lower left and the foil covered styrofoam we use to fill the opening in the upper center. The second photo shows the opening when the slide is closed. The third photo was taken out side looking up at the bottom of the slide. It shows some of the damage done by the bag. I have to put the styrofoam in place when I open the slide and remove it before I close it but the slide operates much smoother now that the bag is gone. Plus the styrofoam seals the opening much better than the bag did.
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Old 05-03-2019, 11:14 AM   #6
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Brand: Thor Motor Coach
Model: ACE 30.4
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THOR #8716
Tom: The bag has torn those flat rubber seals on mine as well. Iíve had to reattach them a couple of times. The canvas bag on mine seems to be oversized and thatís why it bunches up when operating the slide. I assume you install your styrofoam insert through the outside access. The elbow attached to the grey tank inlet was glued and didnít swivel. All the flexing was done by the hose from the kitchen drain. Iím considering installing a smaller pipe from the elbow that will fit down into the tank inlet and let that swivel. Attached is not so great picture of the bag hanging down under the slide. Click image for larger version

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Old 05-03-2019, 11:15 AM   #7
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THOR #8716
Another of the bag under the sinkClick image for larger version

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Old 05-03-2019, 03:09 PM   #8
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Minnesota
Posts: 68
THOR #7948
Quote:
Originally Posted by Steamboat View Post
Tom: The bag has torn those flat rubber seals on mine as well. Iíve had to reattach them a couple of times. The canvas bag on mine seems to be oversized and thatís why it bunches up when operating the slide. I assume you install your styrofoam insert through the outside access. The elbow attached to the grey tank inlet was glued and didnít swivel. All the flexing was done by the hose from the kitchen drain. Iím considering installing a smaller pipe from the elbow that will fit down into the tank inlet and let that swivel. Attached is not so great picture of the bag hanging down under the slide. Attachment 17069
I agree the bag is too big but that is just part of the problem. The flat rubber seals almost always hung up and didnít seal properly, especially in cool weather. After opening the slide I had to check them and usually I had to close the gaps manually. After replacing seals twice under warranty I told my dealer that, as long as I was physically closing the gaps anyway, I was removing the flat rubber seals and the bag and filling the opening with styrofoam. The styrofoam is attached to the bottom of the slide with Velcro. Removing the styrofoam before closing the slide is now part of our pre-trip checklist.

The swiveling elbow is going to require maintenance so youíre drain pipe fix may be better in the long run.
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Old 05-03-2019, 05:36 PM   #9
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THOR #8716
That looks like thatís the way to go. The orange ribbon is a good idea. Looks like I have a weekend project. Thanks for passing along the pictures.
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Old 05-13-2019, 02:49 PM   #10
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Arkansas
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THOR #11266
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Originally Posted by Steamboat View Post
That looks like thatís the way to go. The orange ribbon is a good idea. Looks like I have a weekend project. Thanks for passing along the pictures.
Our 29M is in the shop right now having that seal replaced. Something got caught in there, bad tore, caught the seal and tore off one side. I might do this Styrofoam fix.
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Old 05-21-2019, 10:59 AM   #11
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Brand: Thor Motor Coach
Model: Palazzo 36.1
State: North Carolina
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THOR #13712
Quote:
Originally Posted by TomAndLindaRogers View Post
I agree the bag is too big but that is just part of the problem. The flat rubber seals almost always hung up and didnít seal properly, especially in cool weather. After opening the slide I had to check them and usually I had to close the gaps manually. After replacing seals twice under warranty I told my dealer that, as long as I was physically closing the gaps anyway, I was removing the flat rubber seals and the bag and filling the opening with styrofoam. The styrofoam is attached to the bottom of the slide with Velcro. Removing the styrofoam before closing the slide is now part of our pre-trip checklist.

The swiveling elbow is going to require maintenance so youíre drain pipe fix may be better in the long run.
Great idea, thanks for the information and telling me what was up there. I was trying to figure it out and found the bag when I took of a panel in the bedroom closet to add a light to the washer/dryer area (wife didn't like it after asking for it, so took it back out) saw the nylon bag with hose and electric in it (as well as seeing outside) and wondered what it was for - went outside under the slide and found the seals damaged and not sealing to well. will have to look into the styrofoam solution. I'll bet if you for get it, the pipes will be severely damaged when you pull the slide in. Good idea on the orange armed tag.
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