Double Kitchen Sink Drain Plumbing
Installing a double kitchen sink is a job that most DIYers can handle, but it's important to ensure it's done correctly to avoid leaks or other issues. One important aspect to consider when setting up a double kitchen sink is the plumbing, particularly the drain.
In this article, we'll cover the steps involved in plumbing a double kitchen sink drain, including materials needed, types of drains, and common mistakes to avoid. Whether you're tackling the project yourself or hiring a plumber, this guide will help you understand the process.
Materials Needed
Before starting, gather the necessary materials:
- Double kitchen sink
- Drain assemblies (2)
- P-trap
- Tailpieces (2)
- Slip joint nuts (2)
- Washers (4)
- Teflon tape
- Basin wrench
- Adjustable wrench
Types of Drains
Double kitchen sinks typically use one of two drain types:
- Double Bowl Drain: A single drain assembly with two separate tailpieces, each connected to one sink.
- Two Separate Drains: Two individual drain assemblies, one for each sink, connected to a single P-trap.
Step-by-Step Instructions
Here's a step-by-step guide to plumbing a double kitchen sink drain:
- Install Drain Assemblies: Place a rubber washer over the drain hole in each sink and insert the drain assembly. Secure with the slip joint nut, tightening with a basin wrench.
- Attach Tailpieces: Screw the tailpieces onto the drain assemblies, using Teflon tape to seal the threads.
- Assemble P-trap: Fit the P-trap onto the tailpieces, securing it with slip joint nuts and washers.
- Connect to Drain Pipe: Attach the remaining end of the P-trap to the drain pipe using an appropriate fitting.
- Test for Leaks: Run water through the sinks to check for leaks. Tighten any loose connections if necessary.
Common Mistakes to Avoid
To ensure a leak-free and properly functioning drain, avoid these common mistakes:
- Overtightening Nuts: Avoid overtightening the slip joint nuts, as this can damage the washers and cause leaks.
- Incorrect Washer Placement: Ensure that the rubber washers are placed correctly between the drain assembly and sink, as well as between the P-trap and tailpieces.
- No Teflon Tape: Always use Teflon tape on threaded connections to create a watertight seal.
- Trapped Air in P-trap: Ensure that the P-trap is properly vented to prevent trapped air from causing gurgling sounds or drainage issues.
- Improper Drainage: Check that the drain pipe has a proper slope to ensure efficient draining.
By following these steps and avoiding common mistakes, you can successfully plumb a double kitchen sink drain, ensuring a functional and leak-free setup.
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