First, prepare the arrestor assembly. Wrap the male threads of the water hammer arrestor with 3-4 layers of Teflon tape, wrapping in the same clockwise direction that you will tighten it. Screw the arrestor into the threaded port of the push-to-connect T-fitting and hand-tighten. Use an adjustable wrench to give it a final quarter-turn to snug it up. Now, take the entire T-fitting assembly and push one end firmly onto one of the cleaned copper pipes until it bottoms out. You may hear or feel a 'click'. Then, align and push the other end of the T-fitting onto the other pipe end. Ensure both sides are pushed on completely. Repeat this entire process for the second water line (e.g., the hot water line for the washing machine).
You're viewing a step from: How to Install a Water Hammer Arrestor to Stop Banging Pipes
This guide provides comprehensive, step-by-step instructions for installing a water hammer arrestor to eliminate the loud banging noises in plumbing pipes. The process involves identifying the source of the noise, shutting off the water supply, cutting into the problematic pipe, and installing a T-fitting with an attached water hammer arrestor.
Frequently Asked Questions
What essential tools do I need for this project, especially for cutting and preparing pipes?
You'll definitely need an AUTOCUT 1/2 in. Copper Pipe Tubing Cutter to make clean, straight cuts. Don't forget the Husky 1-5/8 in. Inner/Outer Reamer and Deburring Tool to smooth the pipe ends, which is crucial for leak-free push-to-connect fitting installation. An adjustable wrench will also be handy for general tightening tasks.
What are the most important safety precautions to take before starting this plumbing project?
Always start by completely shutting off the main water supply to your home and draining the pipes to relieve any pressure, which prevents unexpected floods. Wear appropriate eye protection and gloves when cutting pipes to protect against sharp edges and debris. Have a bucket and towels ready for any residual water.
How difficult is this project for a beginner, and what's a realistic time and cost expectation?
This project is rated 'beginner' friendly, primarily due to the use of push-to-connect fittings which significantly simplify the installation process. You can realistically expect to complete it within the estimated 3 hours. Material costs will mainly involve the water hammer arrestor and a T-fitting, likely under $50 depending on your local store.
I'm worried about leaks. What are common mistakes beginners make during installation, and how can I prevent them?
A common mistake is not fully deburring the pipe ends or not pushing the push-to-connect fittings all the way in until they seat firmly. Ensure the pipe is clean and smooth, and mark the insertion depth on the pipe to confirm it's fully seated before pushing. After restoring water, carefully check all new connections for any drips immediately.
How to Install a Water Hammer Arrestor to Stop Banging Pipes
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Step 1: Diagnose and Locate the Problem
Step 1: Diagnose and Locate the Problem
Step 1: Diagnose and Locate the Problem
Step 2: Shut Off Water and Drain the Pipes
Step 2: Shut Off Water and Drain the Pipes
Step 2: Shut Off Water and Drain the Pipes
Step 3: Cut the Pipe
Step 3: Cut the Pipe
Step 3: Cut the Pipe
Step 4: Deburr and Clean Pipe Ends
Step 4: Deburr and Clean Pipe Ends
Step 4: Deburr and Clean Pipe Ends
Step 5: Install the Fitting and Arrestor
Step 5: Install the Fitting and Arrestor
Step 5: Install the Fitting and Arrestor
Step 6: Restore Water and Check for Leaks
Step 6: Restore Water and Check for Leaks
Step 6: Restore Water and Check for Leaks
Step 7: Test the System
Step 7: Test the System
Step 7: Test the System
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