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How to Replace an Old Toilet for Better Efficiency

  • Handy Dads
  • Sep 10, 2025
  • 3 min read

If your toilet looks outdated or often runs up your water bill, now is the perfect time to upgrade. Swapping out an old toilet for a more efficient model not only modernizes your bathroom but helps conserve valuable water. With a few tools and a little patience, this project is very manageable for DIY enthusiasts. Before you start, be sure to clear some time in your schedule and prepare your workspace. Let’s take a look at how to make your bathroom more efficient and stylish with a new toilet.

Project Snapshot

In this project, you will safely remove your old toilet and install a new, modern one designed for water efficiency. You can complete the process in just a couple of hours, barring any unforeseen plumbing issues. Not only will your bathroom look better, but you may also see savings on your water bills. Whether you have an old, leaky fixture or want to take advantage of new technology, this upgrade can make a noticeable difference in your home.

Tools and Materials

You will need a wrench, adjustable pliers, a putty knife, a sponge, a bucket, a new wax ring, mounting bolts, plumber’s tape, cleaning rags, and your new toilet. Be sure to have rubber gloves and goggles for safety, and a towel for any unexpected spills. It’s also wise to have a small hacksaw handy in case you need to trim bolts during installation.

Step-by-Step Instructions

First, turn off the water supply to the toilet and flush to empty the tank completely. Disconnect the water line at the base, soaking up any remaining water with a sponge and bucket. Remove the tank bolts and lift the old toilet free, then carefully scrape away the old wax ring from the flange. Position the new wax ring and set your new toilet in place, ensuring the bolts pass through the mounting holes. Tighten the bolts securely but avoid overtightening to prevent cracking the porcelain. Connect the water supply, turn on the valve, and check for leaks before using. Finally, give the area a thorough cleaning and enjoy your more efficient bathroom.

From the Toolbox

Recently, a customer called Handydads to help with a persistent bathroom leak. On inspection, we discovered their toilet was not only leaking but almost two decades old. After installing a new low-flow model, the leak was gone, and the homeowner was thrilled to notice their water usage dropped in the following months. Sometimes, it’s the small upgrades that offer big results, both for your budget and the environment.

Top 5 Mistakes

Many first timers forget to turn off the water supply, causing unexpected flooding. Skipping the use of a new wax ring can result in water leaks. Not checking the levelness of the toilet leads to rocking and future seal problems. Over or under tightening the hold down bolts risks either damage or loose fit. Failing to check for leaks after installation can mean trouble down the line.

Tool and Material Recommendations

Choose a high efficiency toilet with a reliable brand reputation. Use a quality wax ring and strong, rust resistant bolts for long lasting performance. Invest in an adjustable wrench that fits well in tight spaces. Always keep plumber’s tape in your toolbox for leak free connections. For added peace of mind, select toilets with WaterSense certification.

Quick Tips and Hacks

Take a photo of the existing setup before removal for reference. Place a large garbage bag nearby to catch any residue or debris. Test fit your new toilet before setting the wax ring to ensure proper alignment. Hand tighten connections first to prevent cross threading. Regularly check for leaks after installation to safeguard your bathroom.

Need a Hand?

Ready to upgrade your bathroom or need professional help with plumbing projects? Handydads is just a call away. Our expert team ensures your new toilet is installed safely and efficiently. Reach out today for stress free service and a bathroom you’ll be proud of. With Handydads, every project is in trusted hands.

 
 
 

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