Dodgy push fit toilet sink waste

[Dr Magyar]

I bought a property a while back and it has a small toilet room with a sink. Of and on it has had sewer gas smell which I recently traced to the waste of the small sink.

Lots of problems with the sink, like it was not installed level so that none of the plumbing fits properly.

Anyway, I also noticed that the waste is an embedded plastic push fit elbow, the small part of the elbow sticking out of the wall. Inside the elbow joint is a single rubber ring seal.

Is this normal? What is the best way to make this truely water tight and air tight?

I don't want to have to dig into the wall and start a major building operation.

[stoneyboy]

Dr Magyar,
Separate the joint and use sanitary silicone sealant on the mating surfaces of the joint.
end

[Dr Magyar]

Dr Magyar,
Separate the joint and use sanitary silicone sealant on the mating surfaces of the joint.
end

I have read somewhere that although this might work in the short term, after a while sanitary silicone sealant will start to leak.

Is that true or an I unduly worried?

[stoneyboy]

Dr Magyar,
Provided you apply the silicone to clean and dry surfaces there should not be a problem. If this is not successful you will have to dig out the elbow and replace it.
end

[TheDoctor4]

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