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Old 07-08-2018, 07:52 PM   #1
Senior Member
 
Brand: Thor Motor Coach
Model: Quantum 31WS
State: Arizona
Posts: 121
THOR #7419
Kitchen sink drain failure

A word to the wise for Quantum WS31 owners. We had the sink drain to the grey water tank come undone last night. The drain connection is behind the blank panel on the second row of deawere on the slideout. What i found

1) The elbow into the tank was not secure allowing the assembly to rotate. It rotated to the point it allowed the hose to be dislodged by the cabinet frame.

2) The hose is held into the elbow by a system of 4 heavy cable ties, as well as the compression connection.

3) there is a black bag that encloses the hose and flange and closes off the slide opening. Ours was in a pile allowing a huge opening into the mh.

Talked with Thor Customer Service. Actually got someone who kner rhe exact system, it's parts anh how to refit properly. Realigned and tightened elbow, reattached hose with compression fitting, rerouted system of cable ties, refit and closed bag cycled slide a few times to verify alignment and no binding. Will recheck periodically.
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Old 07-10-2018, 04:56 PM   #2
Junior Member
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Oregon
Posts: 5
THOR #11798
We had a very similar problem a few weeks ago on our 3000 mile maiden voyage (which I don't recommend). The design has a piece of aluminum tube with hose ties on each end holding the connection together. Same as you, the elbow moved over time, making the hose kink on the cabinet face frame as well as a poorly located electrical junction box. I screwed down a wooden block next to the elbow to hopefully prevent further swiveling. So far so good.
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Old 07-10-2018, 05:29 PM   #3
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Brand: Thor Motor Coach
Model: Quantum 31WS
State: Arizona
Posts: 121
THOR #7419
I'll be monitoring mine closely to see what transpires. Hopefully, the way i secured the elbow will hold.
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