Plumber Red Seal · Question
Which type of fitting is NOT permitted in concealed drainage piping carrying sanitary waste?
Blind plugs are not permitted in concealed drainage piping carrying sanitary waste as they prevent access for cleaning. All connections must be permanent and ac
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Question: Which type of fitting is NOT permitted in concealed drainage piping carrying sanitary waste?
Answer options:
- Long radius elbow
- Sanitary tee ✅ Blind plug
- Double sanitary tee
Correct answer: Blind plug
Explanation: Blind plugs are not permitted in concealed drainage piping carrying sanitary waste as they prevent access for cleaning. All connections must be permanent and accessible if they are to be maintained or serviced.
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