How to Replace a Toilet: A Step-by-Step Guide

Replacing a toilet may seem like a daunting task, but with the right tools and a bit of patience, it's a manageable DIY project. Whether you're upgrading to a more efficient model or simply replacing an old, worn-out unit, this guide will walk you through the process step by step.

Tools and Materials You'll Need

Before you begin, gather the following tools and supplies:

• Adjustable wrench

• Screwdriver

• Putty knife

• Utility knife

• Sponge and bucket

• Towels or rags

• Wax ring

• New toilet

• Closet bolts (if not included with the toilet)

• Plumber’s putty or caulk (optional)

Step 1: Shut Off the Water Supply

The first step in replacing a toilet is turning off the water supply. Locate the shut-off valve, typically found on the wall behind the toilet. Turn the valve clockwise to stop the flow of water. Flush the toilet to drain the tank, and use a sponge or towel to soak up any remaining water in the bowl and tank.

Step 2: Disconnect the Water Supply Line

Use an adjustable wrench to loosen the nut connecting the water supply line to the bottom of the toilet tank. Have a towel or small container ready to catch any remaining water in the line.

Step 3: Remove the Old Toilet

Unscrew the bolts securing the toilet to the floor. These are usually covered with plastic caps that you can remove with a screwdriver or utility knife. Once the bolts are exposed, use an adjustable wrench to loosen and remove them.

Carefully lift the toilet straight up to detach it from the wax ring. If the toilet feels stuck, gently rock it back and forth to break the seal. Once it’s loose, set the old toilet aside on a towel or newspaper to prevent messes.

Step 4: Prepare the Floor

With the old toilet removed, scrape away any leftover wax from the flange using a putty knife. Inspect the flange for any damage; if it's cracked or broken, it will need to be replaced before installing the new toilet. Position new closet bolts into the flange slots to secure the new toilet.

Step 5: Install the New Wax Ring

Place a new wax ring onto the toilet flange or the base of the new toilet. The wax ring ensures a tight seal and prevents leaks. Make sure it is centered properly to avoid any issues when setting the toilet in place.

Step 6: Set the New Toilet in Place

Carefully lift the new toilet and align it with the closet bolts. Lower it straight down onto the wax ring and press firmly to create a good seal. Do not rock or shift the toilet once it's in place, as this can break the wax seal.

Step 7: Secure the Toilet

Tighten the nuts onto the closet bolts, alternating sides as you tighten to ensure an even fit. Be careful not to overtighten, as this could crack the porcelain. If necessary, trim excess bolt length with a hacksaw and replace the plastic caps.

Step 8: Reconnect the Water Supply

Reconnect the water supply line to the fill valve at the bottom of the tank. Turn the shut-off valve counterclockwise to restore water flow. Once the tank fills, flush the toilet a few times to check for leaks.

Step 9: Seal the Base (Optional)

To finish the installation, you can apply a thin bead of caulk around the base of the toilet. This helps prevent moisture buildup and provides a cleaner appearance.

Conclusion

Replacing a toilet is a straightforward project that most homeowners can tackle in just a few hours. With the right tools and attention to detail, you can save money on professional installation while ensuring a reliable and leak-free setup.