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Place the plastic retainers, metal washers, and nuts onto the closet bolts that are now sticking through the toilet base. Use an adjustable wrench to tighten the nuts. Alternate between the left and right nut, tightening each one a little at a time to apply even pressure. Tighten until the toilet is stable and does not rock. Be very careful not to overtighten, as this can crack the porcelain base. If the closet bolts are too long, you can trim the excess with a hacksaw before putting on the decorative bolt caps. Finally, reconnect the water supply line to the fill valve on the bottom of the tank, hand-tightening first and then giving it a final quarter-turn with the wrench.

You're viewing a step from: How to Replace a Broken Toilet Flange

Intermediate

6 hours

2/4 Inventory

This guide provides comprehensive instructions for replacing a broken toilet flange. The process involves turning off the water, removing the toilet, extracting the old broken flange, installing a new one, and then reinstalling the toilet with a new wax seal to ensure a leak-proof connection.

Based on content fromThe Plumbers Plunger· 201K subscribers

Frequently Asked Questions

Is replacing a toilet flange a difficult DIY project for a beginner, and how long does it typically take?

This project is rated as intermediate due to the precision required for a leak-proof seal and the need to handle plumbing. While the estimated time is 6 hours, beginners should allocate a full day, as unexpected issues like subfloor damage can extend the duration significantly.

Do I really need all the specific tools and materials listed, or can I substitute some for this project?

Many essential tools like adjustable wrenches, a drill, level, and screwdrivers are critical. While some general tools might be substituted, using the recommended materials like a new PVC flange, primer, cement, and a quality wax ring with bolts ensures a durable, leak-proof repair. Avoid cutting corners on the sealing components.

What's the most common mistake people make when replacing a toilet flange, and how can I avoid leaks?

The most common mistake is not ensuring the new flange is perfectly level with and securely fastened to the finished floor, or improperly seating the wax ring. To avoid leaks, make sure the flange is flush and tight, and carefully set the toilet straight down onto the new wax ring without rocking.

What are the most important safety precautions I should take when replacing a toilet flange?

Always shut off the water supply to the toilet and completely drain the tank and bowl before starting any work. Wear disposable nitrile gloves for hygiene and consider eye protection when working with tools or chemical primers and cements. A tarp is also crucial for protecting your flooring from water or debris.