The Tiny house Blog

How to Install a Toilet: A Beginner's Guide

By
Jason Francis
Designed and built over 100 custom tiny homes, lived on a sailboat for 9 months, and loves to live life to the fullest with his wife and their 4 kids.
Updated on:
November 5, 2024
How to Install a Toilet

Let's tackle the challenge of installing a toilet together, step by step. We'll need to gather essential tools: an adjustable wrench, a screwdriver set, and a new wax ring. Once we've shut off the water supply, we'll remove the old fixture and inspect the flange. Getting the flange right is vital, as it forms the foundation for the new toilet. With the wax ring in place, we'll position and secure the toilet, ensuring a snug fit. But that's not all—what about connecting the water supply and checking for leaks? Stick with us as we untangle these final steps.

Gather Tools and Materials

Before we plunge into the installation process, gathering the right tools and materials is vital for a smooth and efficient job. Let's start with the basics. We need a wrench, preferably an adjustable one, to tackle various bolt sizes. A screwdriver set will help with any screws we encounter. A putty knife is essential for removing any residue or sealant around the base. Don't forget a bucket and sponge to manage any water spills. Having a level guarantees our toilet sits perfectly flat, preventing leaks and wobbles.

Next, let's talk about materials. A new wax ring is a must-have. It provides a watertight seal between the toilet and the floor flange. We also need a flexible water supply line to connect the toilet to the shut-off valve. This line should be long enough to accommodate the new toilet's height. Bolts and caps are usually included with the toilet, but it's wise to double-check.

Now that we've organized our tools and materials, we're all set to move forward confidently. This preparation guarantees that we won't face unexpected interruptions, making the installation process as hassle-free as possible.

Remove the Old Toilet

To kick off removing the old toilet, we'll first shut off the water supply to prevent any unexpected floods. Locate the shutoff valve typically found near the base of the toilet. Turn it clockwise until it's fully closed. Next, let's flush the toilet to drain as much water as possible. Hold down the handle to guarantee the tank empties completely.

Now, we need to tackle any remaining water. Use a sponge or a small cup to scoop out the leftover water from the tank and bowl. This step is essential to avoid spills when we lift the toilet. With the water taken care of, let's disconnect the water supply line. Using an adjustable wrench, unscrew the nut connecting the line to the toilet tank.

Next, we'll focus on removing the nuts securing the toilet to the floor. Use a wrench to carefully loosen and remove these nuts. If they're stuck, a bit of penetrating oil can help loosen them. Once the nuts are off, we're ready to lift the toilet. Rock it gently to break the wax seal, then lift it straight up and set it aside. Remember, toilets can be heavy, so take care when lifting.

Prepare the Toilet Flange

Let's turn our attention to preparing the toilet flange, an important step in guaranteeing a secure installation. First, we need to inspect the flange for any damage or corrosion. If it's cracked or broken, replacing it is vital to avoid leaks and guarantee stability. We can find a new flange at any hardware store, matching it to the same size as the old one.

Next, we should clean the area around the flange thoroughly, removing any residue from the previous wax ring or debris. A putty knife works well for this task, allowing us to scrape away old materials and create a clean surface for the new installation. Once cleaned, let's verify the flange is level with the floor. If it's not, shims can help adjust its height.

Now, check the flange bolts. They should be sturdy and aligned with the bolt holes on the toilet base. If they're loose or rusty, replacing them with new bolts will provide a stable foundation for the toilet.

With the flange prepped, we're ready to proceed confidently to the next step in our toilet installation journey.

Install the New Wax Ring

As we move forward in our installation, placing the new wax ring is vital for guaranteeing a watertight seal between the toilet and the flange. Let's start by making certain we have the right size wax ring for our toilet model. Before handling the wax ring, it's a good idea to warm it slightly. We can do this by letting it sit at room temperature for a bit, making it more pliable and easier to work with.

Now, let's position the wax ring. Place it on the toilet outlet, the part underneath the bowl that will connect to the flange. Confirm it's centered and firmly pressed onto the outlet to prevent it from shifting during the installation. Be gentle, as we don't want to deform the ring.

At this point, we should double-check that the flange area is clean and free from debris. A clean surface helps the wax ring adhere properly, guaranteeing that watertight seal we're aiming for. Remember, the wax ring is our primary defense against leaks, so taking these careful steps is essential. With the wax ring in place, we're now ready to move on to positioning the toilet.

Position and Secure the Toilet

Now that the wax ring is in place, it's time to position the toilet over the flange with care and precision. Let's lift the toilet bowl by gripping it securely around the rim. It's vital to keep it level to avoid disturbing the wax ring. Carefully lower the bowl onto the flange, aligning the bolt holes on the base with the bolts on the flange. Take your time to guarantee a perfect fit, as this will prevent leaks later.

Once aligned, apply gentle pressure as we rock the toilet slightly from side to side. This action helps the wax ring create a watertight seal. Now, let's secure the toilet by placing washers and nuts onto the bolts. Tighten them gradually and evenly, using a wrench, but be cautious not to over-tighten, as this can crack the porcelain.

Next, we'll attach the toilet tank to the bowl if it's not already connected. Align the bolts from the tank with the holes on the bowl, then hand-tighten the nuts. Finish by using a wrench to secure them firmly. With everything in place, we've successfully positioned and secured our toilet.

Connect Water Supply and Test

With the toilet securely in place, we'll turn our attention to the water supply. First, locate the water supply valve near the base of the wall behind the toilet. Make sure it's turned off by twisting it clockwise. Now, take the flexible supply line and attach one end to the fill valve on the toilet tank. Use an adjustable wrench to tighten it, but be careful not to overtighten, as this could damage the fittings.

Next, connect the other end of the supply line to the water shut-off valve. Again, use the wrench to secure it, making certain of a snug fit without excessive force. Double-check all connections to confirm they're secure and watertight.

Once everything is connected, it's time to test our work. Slowly turn the water supply valve counterclockwise to let water fill the tank. Listen for any unusual sounds and closely inspect all connections for leaks. If you spot any drips, gently tighten the fittings.

After the tank fills, flush the toilet a couple of times to make sure everything functions smoothly. If it does, congratulations! We've successfully connected the water supply, and our toilet installation is complete.

Conclusion

We've reached the end of our journey, and with a few simple steps, we've demystified toilet installation. By gathering the right tools, carefully removing the old fixture, preparing the flange, and installing a new wax ring, we've laid a solid foundation. Positioning and securing the toilet, followed by reconnecting the water supply, completes the task. Now, let's test everything to verify a leak-free, smoothly functioning toilet. You've got this—enjoy the satisfaction of a job well done!

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