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Bill596 · 02-20-2022, 04:46 PM

I have a problem with the flexible pipe used in the kitchen drain plumbing. It has come out of ABS elbow leading up to the sinks. The elbow itself rotates on the ABS pipe it is 'connected' to also. Winnebago specifies a primer 126427-02-000 and cement 126427-01-000 to use between the pipe and elbow. Does anyone know the commercial equivalent products? Should the elbow be cemented to the pipe coming from the sinks? If so, how should the outlet opening be positioned in relation to the down pipe, facing to the front, to the driver side of halfway between.
Here's a photo: The elbow is shown facing the front, the flex pipe is shown at the top left of the photo the photo should rotate 90 to the right

BobnMelba · 02-20-2022, 05:22 PM

I just bought a 2011 33c so I can look under the sink tomorrow and send some pictures of mine. Be aware they do some crazy stuff with the plumbing in these motor homes and yours might not be exactly the same.

BobnMelba · 02-21-2022, 08:42 AM

Mine does not have the same plumbing layout as yours does.

Bill596 · 02-21-2022, 02:54 PM

Thanks, BobnMelba, for checking.
I'll see what others say. Does anyone know if the primer and cement are the regular ABS pipe products?

Bill596 · 03-01-2022, 02:15 PM

Follow up on the Kitchen drain issue. It is cemented and appears to be fixed.
The White plastic flex pipe is Super Flex PVC Spa pipe. What I thought was tape around the open edge is really an end termination. It is smooth and will insert into the fitting to allow a good seal. I believe the problem is caused by the cementing of the PVC spa pipe to an ABS elbow. The end of the flex pipe that goes into the holding tank has a PVC elbow. The end that came out, came out of the ABS elbow at the end of the rest of the sink drainpipe assembly which is all ABS.
The rotation of the ABS elbow appears to be by design as the flex pipe is quite stiff and allowing the elbow to rotate about 45 degrees allows the flex pipe to slide as the room moves in/out without forming too sharp of a bend. The ACME connection at the ABS elbow looks to me like it should rotate and maintain its seal.
I used Oatey Purple primer on the Flex pipe end only, then used Oatley All Purpose Cement for ABS, PVC and CPVC to join the two pieces.
With any luck it will last as long as the original did.