The flex pipe throws me at first because I expect it to be very flexible and it is not. Your sink drain leaks, or it breaks.
The built-in E-Z grip fasteners are strong and reusable and the ?tear-to-fit? feature allows for a quick tool-less installation.
Perhaps the water is backing up in your sink, and you know it's clogged. I always just figured it was because the drain stopper isn't installed right (previous owner did a bad job).
![](https://i.ytimg.com/vi/hzLqWu4DNO0/maxresdefault.jpg)
How to Plumb a Drain - Sink Drain Pipes - YouTube
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BASIN SINK P TRAP DRAIN WASTE CHROME PLATE WITH DRAIN PIPE ...
![](https://i.ytimg.com/vi/hQNhaL8o_pQ/maxresdefault.jpg)
plumbing:bad water leak under bathroom sink - YouTube
![](https://i.stack.imgur.com/ZTxZJ.jpg)
plumbing - What shape/bends should a bathroom sink drain ...
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plumbing - New Vanity: Sink Won't Drain Completely - Home ...
![](https://ae01.alicdn.com/kf/HTB18BttXifrK1RjSspbq6A4pFXaB/Kitchen-stainless-steel-sink-drain-filter-single-tank-sink-drain-pipe-deodorant-bathroom-sewer-accessories-magic.jpg)
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![](https://www.hometips.com/wp-content/uploads/2012/06/bathroom-sink-plumbing-diagram.gif)
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Plumbing 101 – Tackling a Clogged P-Trap | ClearView ...
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Bathroom Drain Pipe - Replace a Sink Trap - YouTube
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Measure that opening to ensure you get the right size drain, or check the manufacturer's instructions that came with the sink, as they should include the corresponding drain size.
UPDATED SCHEMATIC after posting to show toilet - this works fine and does not cause any problems to the sink or bath when flushing. My bathroom sink had been draining slowing for a while and it was finally time to figure it out.
![](http://tenchicha.com/t/2017/07/pea-trap-sink-drain-pipes-flexible-sink-drain-drain-trap-types-oil-rubbed-bronze-p-trap-lowes-p-trap-flexible-drain-pipe-bathroom-sink-p-trap-extension-different-types-of-p-traps-pvc-pipe-t.jpg)
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![](http://knowledgebase.lookseek.com/images/home/home-repair/plumbing/Bathroom-Sink-Drain.jpg)
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Under the sink, there is a valve connected to the back of the U-pipe.
NOTE: In this example, the parts are being installed while the sink is removed from the vanity. Long Line Plastic Hook Kitchen Bathroom Sink Pipe Drain Cleaner Pipeline Hair Cleaning Removal Shower Toilet Sewer Clog.
![](https://images.homedepot-static.com/productImages/359ffa5b-16f1-48f6-8f8e-3ec808356961/svn/polished-chrome-kohler-drains-drain-parts-k-7129-cp-64_1000.jpg)
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Bathroom Sink - How to Install a Faucet
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![](https://i.ytimg.com/vi/_nSlz14ZBMU/maxresdefault.jpg)
How To Install Drain Pipes On a Kitchen Sink - YouTube
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![](http://knowledgebase.lookseek.com/images/home/home-repair/plumbing/Bathroom-Sink-Drain.jpg)
Bathroom Sink Drain Repair - Knowledge Base LookSeek.com
![](https://fthmb.tqn.com/28eViEqZm7vIispHftNtzcNGWLM=/960x0/filters:no_upscale():max_bytes(150000):strip_icc()/sinktrap-56a73bce3df78cf772938399.jpg)
How to Unclog a Bathroom Sink Drain With a Snake
![](http://cf.ltkcdn.net/homeimprovement/images/std/129917-200x300-sink-trap.jpg)
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Bathroom Sink - How to Install a Faucet
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Pipe Cleaning Knowledge Base: Basic Facts
![](https://i.ytimg.com/vi/oe0GIAl1VcU/hqdefault.jpg)
Bathroom Drain Pipe - Replace a Sink Trap - YouTube
![](https://ae01.alicdn.com/kf/HTB1c8YAclsmBKNjSZFsq6yXSVXaR/Talea-21nch-Sink-Drain-Strainer-waste-hose-Bathroom-Basin-Tank-Plastic-connector-Cess-Pipe-Kitchen-Sink.jpg)
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Bathroom sink pipe in the way of new vanity - DoItYourself ...
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Bathroom ABS Flexible Anti odor Pipe Sink Basin Water ...
![](http://tenchicha.com/t/2017/07/pea-trap-sink-drain-pipes-flexible-sink-drain-drain-trap-types-oil-rubbed-bronze-p-trap-lowes-p-trap-flexible-drain-pipe-bathroom-sink-p-trap-extension-different-types-of-p-traps-pvc-pipe-t.jpg)
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![](http://nepinetwork.org/wp-content/uploads/2018/07/amazing-installing-bathroom-sink-drain-pipe-discovery-creek-in-plan-0.jpg)
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![](https://i.redd.it/cysrndjs7yty.jpg)
How do I fix this Bathroom Sink P-trap? : Plumbing
![](http://i.ytimg.com/vi/AmVvzrNFbYs/maxresdefault.jpg)
new bathroom vanity sink and pvc drain:plumbing tips - YouTube
![](https://www.thehandymansdaughter.com/wp-content/uploads/2018/06/flexible-waste-pipe-extension-on-sink-drain-600x800.jpg)
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How to Do Plumbing on Drains & the Angles You Need | eHow
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How to unclog a sink, shower or tub drain and how to clean drains.
Your bathroom might look clean, but that stinky smell coming from your sink drain says otherwise. Bathroom sink leaks are usually caused by a bad drain pipe, loose pipe connection or leaky sink drain flange.
![](http://www.diychatroom.com/attachments/f7/17265d1264886083-bathroom-sink-pipes-does-look-right-img_6021.jpg)
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Bathroom Sink - How to Install a Faucet
![](https://i.ytimg.com/vi/-IK3iLUcBxA/maxresdefault.jpg)
Bathroom Sink Plumbing Install - YouTube
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plumbing:bad water leak under bathroom sink - YouTube
![](https://www.easyhometips.org/wp-content/uploads/2017/07/Bathroom-Sink-Drain-Pipe-size.png)
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![](https://i.stack.imgur.com/HE7Te.jpg)
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![](http://ecx.images-amazon.com/images/I/41a7t9NKW9L._SY300_.jpg)
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Sink Vent Issue - DoItYourself.com Community Forums
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I always just figured it was because the drain stopper isn't installed right (previous owner did a bad job). Your bathroom might look clean, but that stinky smell coming from your sink drain says otherwise. Notice that with a dishwasher connected, that drain does connect directly into the side of the disposal unit: that's how the dishwasher gets rid of any food scraps stuck to the dishes, without sending them into the pipe as potential clogs.