Toilet Fills Up Fast But Drains Slowly? Here are 5 Reasons Why

August 7, 2023
Toilet Repair in Ramona, CA

Toilets are a key component of our everyday lives, but it can be incredibly inconvenient when they start to act up. One common problem is when your toilet fills up quickly and drains slowly. This can be caused by a few different things, so it’s important to diagnose the cause to get it fixed with a toilet repair service if needed. Here are five reasons why your toilet might be filling quickly but draining slowly.

1. Clogged Toilet Drain

A clog in the toilet drain can occur from various things, including an accumulation of paper towels, excess toilet paper, or foreign objects that have been flushed. It could also result from a buildup of mineral deposits from hard water. If this is the case, your plumber will use a drain snake to try and remove the clog.

2. Leaking Flapper Valve

The flapper valve is located at the bottom of the tank and controls how much water enters the bowl when it’s flushed. If the flapper valve is broken or leaking, it won’t close completely, and as a result, water will continuously flow into the bowl until it overflows.

3. Faulty Fill Valve

The fill valve controls how much water enters the tank after you flush. A float or a ball activates this valve, and if either of these components is malfunctioning, it won’t be able to regulate the water levels correctly.

4. Broken Tank Float

The tank float controls the water level in the tank; if it’s broken or damaged, it won’t be able to detect when the tank is full. This results in too much water entering the bowl and causing a slow drain.

5. Low Water Pressure

If your toilet has low water pressure, this can also cause slow drainage as it provides insufficient force to push the waste out of the bowl. In this case, it’s best to contact your plumber to take a look at the issue.

There are several potential culprits if you’re experiencing a toilet that fills quickly but drains slowly. The best way to figure out why is by having a professional plumbing company like Marklein Plumbing come and take a look. We have the tools and expertise to diagnose and fix the issue correctly. We can also help you with a variety of plumbing services including drain cleaning, toilet installation, shower repair, garbage disposal, water filtration, and sewer services in Ramona. Contact Marklein Plumbing today, and we’ll get your toilet back up and running in no time!

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