Kitchen Sink Drain Trap


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Old 08-06-22, 08:25 AM
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Kitchen Sink Drain Trap

Hello. Sorry if this isn’t the correct thread to post in.

I’ve been having issues with my kitchen sinks. When I drain one sink, it floods up through the other sink. Sometimes it seems slow to drain. I assume there’s a clog or blockage in the drain trap (P trap? Not sure if they’re the same). I’ve tried using baking soda and vinegar to flush it out but the problem remains. My partner has previously used products such as Drano but never seems to help long term. So, I think it’s time to check for clogs…

1. Do I unscrew the three pieces circled in the attached photo? Once unscrewed, I’ll clear any blockages and clean it out.
2. Will I need to reattach the pieces with tape or any kind of glue?
3. Do I need to shut off the main water to the house or will turn the ones off under the sink be sufficient?
4. Are there any special tools that I will need?

Any advice, tips or guidance is greatly appreciated. Thanks in advance!!


 
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Old 08-06-22, 08:42 AM
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Welcome to the forums.

This forum is ok.

Yes.... you will need to loosen those three locknuts to remove the entire drain and trap assembly.
Your clog will more than likely be at the fitting in the wall where the pipe thru the wall connects.
 
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Old 08-06-22, 10:29 AM
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Normally you would just remove the trap, but what you have is all Sch 40 pipe/fittings from the tailpieces on. I have never seen that before and definitely would never recommend it be done this way. You current issue and how to resolve it is a great reason why it shouldn't be done this way.
 
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Old 08-07-22, 04:26 PM
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Just to clarify, you should be able to loosen only the black nuts. The brass ones should be able to stay as-is.

They may be hand-tight, but you also might need a pair of slip-joint pliers to loosen them. They shouldn't be tightened much more than hand-tight.

The clog could be at the trap, or it could be in the wall, depending on the pipe type and layout of the pipes in the wall.
 
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Old 08-08-22, 03:18 PM
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Thanks everyone for your responses so far. I was able to remove it today and cleared the clogs in the pipes. I removed as much as I could from the pipe in the wall - if I have issues again I’ll get a sink auger thing to remove what I couldn’t. When I reattached the pipe the sinks drain without coming up into the other one.

I tried to remove the pipe under the bathroom sink but the nut was too tight so I’ll have to get a tool to remove it. Thanks again!
 
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Old 08-08-22, 03:43 PM
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You'd need to use a snake to clean the pipe to stack fitting. The one in the link is the one I have.
A good all around snake to have.
Ridgid plumbing snake
 
 

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