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Toilet Leaking at the Base? This Could Be the Problem

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Did you discover a small pool of water next to the base of your toilet? Many homeowners eventually encounter this common issue, and it’s important to fix it quickly before it causes serious damage. Mr. Rooter Plumbing has seen it all when it comes to leaks and bathroom plumbing problems. Are you wondering why your toilet might be leaking at the base and what could be causing it? Keep reading to find out whether it’s time to call in a plumber.

Sweaty Toilet Tanks

It’s easy to jump to conclusions when you see water pooling around the base of your toilet, but sometimes, the source is simpler than you think. Condensation on the toilet bowl or tank can give the illusion of a leak. During warm, humid weather, the cold water inside the toilet tank cools the porcelain, and if your bathroom is steamy or warm, condensation forms. That condensation drips down the tank or bowl and settles around the base of the toilet, which creates a puddle. It may seem harmless, but consistent moisture around the toilet can cause damage to your floor and invite mold or mildew. You may be able to reduce condensation by insulating the tank or using a dehumidifier in the bathroom. But, if you’re unsure whether condensation is truly the cause or you notice the issue worsening, call a plumber for a professional inspection. Sometimes, what looks like a simple case of moisture buildup could be hiding a more complicated problem. 

Damaged Water Supply Hose

Another common cause of water pooling around the base of your toilet is damage to the water supply hose. The supply hose is responsible for delivering water from your home's plumbing to the toilet tank. These hoses can develop small cracks, leaks, or loose connections. If you spot water at the base of your toilet and find that the area directly under the supply line is damp, you might have found your problem. Check the water supply hose by inspecting it closely. If you notice any cracks, rust, or visible wear, it’s time for a replacement. Replacing the hose is usually a simple and inexpensive fix, but it’s important to turn off the water supply before doing any work. If you don’t feel confident in making the repair yourself, contacting a professional plumbing repair service is always a smart move.

Loose Closet Bolts 

Sometimes, the issue is mechanical rather than related to moisture or damage. The closet bolts hold your toilet securely to the floor. These bolts can become loose or rusted and cause your toilet to shift slightly. When this happens, the seal between the toilet and the floor can break, which allows water to escape whenever you flush. A toilet that wobbles or moves is a classic symptom of loose closet bolts, so don’t ignore it. To resolve this, remove the plastic caps at the base of the toilet and inspect the bolts. Tightening them may be all you need to do to solve the problem, but be careful not to overtighten them because this can crack the porcelain and leave you with a much bigger issue. If the bolts are rusted or corroded, you may need to replace them completely. In some cases, tightening the bolts isn’t enough because the damage to the seal has already occurred. If that’s the case, a more in-depth toilet repair involving the wax ring is necessary.

Wax Ring Failures

The most common cause of a toilet leaking at the base is a faulty wax ring. The wax ring is an important part of your toilet's installation. It creates a watertight seal between the bottom of the toilet and the drain pipe on the floor. Over time, the wax ring can become worn or compressed, which breaks the seal and allows water to leak out. This usually happens when the toilet shifts from loose bolts or because of natural wear and tear. If the wax ring is the issue, you’ll probably notice that water leaks out each time you flush the toilet. Fixing a wax ring involves more than some of the other repairs we’ve discussed. The toilet needs to be disconnected and lifted off the floor so the old wax ring can be removed. Then a new one can be installed before the toilet is reset. You’ll need to get the alignment just right to avoid future problems. While some handy homeowners may feel comfortable attempting this repair, many prefer to leave it to a professional plumber to make sure it’s done correctly.

Do You Need a Professional Leak Repair?

If you’re dealing with a toilet leak, don’t wait for the problem to get worse. Whether it’s a simple fix like or a more complicated wax ring replacement, Mr. Rooter Plumbing is here to help. Our experienced team can quickly diagnose and fix leaks, to make sure that your home’s plumbing system is in excellent shape. Contact us to schedule an appointment for your next toilet repair, leak repair or plumbing repair service.

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