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Old 11-05-2020, 08:16 PM   #1
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Brand: Thor Motor Coach
State: Arizona
Posts: 5
THOR #21138
Thor 29M 2019

We had our kitchen drain shear off at the gray water tank on our 2019 29M. I took the advice from another forum to use a 1 1/2 inch swivel. It worked great for four times retracking and extending the slide. On the fifth time out the pipe sheared again. The cause is that big bundle of wires and hoses. It dropped down behind the pipe causing it to shear. I then took a large tie wrap around the bundle and drain hose. It keeps it off the pipe but still loose enough to flex. Hopefully this will fix the problem. I will say the open compartment is way too tight.
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Old 11-06-2020, 04:12 AM   #2
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Brand: Thor Motor Coach
State: North Carolina
Posts: 470
THOR #19102
Is this behind the panel under the sink?
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Old 11-06-2020, 04:38 AM   #3
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Brand: Thor Motor Coach
State: Arizona
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THOR #21138
When you extend the slide out there is a foot wide slot underneath the floor where you have access to the pipe and harness of wires. You have room to put your head up and see the duct work and flex drain going into the gray water tank. The swivel allows the pipe to rotate taking away the stress. Also I tie wrapped the bundle of wires to the flex drain keeping the bundle from pressing on the abs pipe shearing it off. Hope this helps.
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Old 11-06-2020, 04:42 AM   #4
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Brand: Thor Motor Coach
State: Arizona
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THOR #21138
Yes it's under the sink but the access is outside underneath the slide out.
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Old 11-06-2020, 04:48 AM   #5
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Brand: Thor Motor Coach
State: Arizona
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THOR #21138
Couple more pics. I don't know if all Thor 29M are this tight.
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