Does Water Evaporate Out of Toilet Bowl?(Solved)

Does Water Evaporate Out of Toilet Bowl?

Note: As an amazon associate I may earn a small commission from qualifying purchases if you click to amazon from my site and choose to make a purchase.You can read my complete affiliate disclosure for more details

Does Water Evaporate Out of Toilet Bowl?

A toilet bowl is a plumbing fixture that collects and disposes of toilet waste. It has a round basin with water and grates inside, separated into several compartments by bars or walls called partitions or baffles.

Yes! Any water body that is exposed to air will slowly evaporate especially if the toilet is not regularly being used, also a worn float ball on a gravity flush toilet won’t rise enough to shut the water flow into the chamber. This will cause it to empty into the toilet bowl before use, leading to problems with flushing.

Other Common reasons include the following:

1. Damaged Flapper

The rubber flapper inside gets damaged due to old age, misuse, or someone stepping on it. This will break the water seal and lead to a dry bowl.

2. Poorly Vented Sewage System

A poorly ventilated sewer system will lead to toilet bowl drying problems, especially if the house is a single-story. If a cloggy trap doesn’t respond to cleaning, the overflow valve may damage and not work properly.

3. High Water Pressure

Some modern toilets have a pressure-assisted tank. If you install the toilet in an older home and the water pressure is too high, then this can lead to toilet bowl drying problems.

The water rushes through too quickly, overfilling the tank and causing it to empty into the bowl before you use it.

4. A Closed Vent

Most toilets rely on a vent pipe to release gases into the atmosphere. However, sometimes this can get blocked with debris washed down the drain. This will lead to problems with flushing and a toilet bowl that goes dry.

5. Low Water Pressure

Conversely, a toilet with a gravity flush system can experience problems if the water pressure is too low.

With lower pressure, the water takes longer to enter the tank and fill it up, which may mean it drains out before using it.

Why Has My Water Pressure Slowed?

DebrisDirt, Sand,Stones and Lint.
ClogsLong hair around the drain; a clog happens when you flush it.
LeaksFaucet leaks, Pipes and Other fixtures.
Low Water Pressure In Your Area-Issues with the water supply in your area, Faulty pressure regulator.
-A broken pipe directly to your house and a broken pipe from your house to the street’s main pipe.
Natural And Man-made DisastersEarthquake, Flooding (Deluge) and Tornado.

Why Is My Toilet Not Flushing but Not Clogged?

1. Clogged Rim Holes

Your toilet rim holes are too small, causing them to overflow. If you’re using a plunger, clear the inside of the toilet rim holes and then continue plunging.

2. Clogged Siphon Jet

Your toilet bowl strainer obstructs your toilet siphon jet. Too much hair or objects in the bowl (such as paper towels) causes this problem.

Does Water Evaporate Out of Toilet Bowl?

3. Leaky Flapper

The large rubber seal at the top of your toilet tank is so old and it’s leaking water into your floor drain. The repair is simple, replace the flapper with a new one with a rubber seal that seals tightly against the tank rim. 

4. Clogged Drain Line

You can’t flush the tank when the trap under your toilet collapses. Remove the access panel under your toilet and repair the trap.

5. Low Water Level In The Tank

Another symptom of a clogged toilet and not a clogged drain is a low water level in the tank. Add water to the tank to restore the normal level and wait until it starts flowing.

6. Broken Float Valve

The float valve under your toilet causes water to flow backward into your toilet bowl when you flush. If you hear a loud hissing sound when you flush, you have an open valve that needs repair.

How Do You Fix A Weak Or Incomplete Toilet Flush?

Clear the clog in the trap way before flushing the toilet.

  1. Use a plunger on the drain opening to force water into the toilet.
  2. Add a cup of white vinegar or a package of clog-fighting powder to the toilet bowl, flush, and repeat as necessary.
  3. If that doesn’t work, pour 1/4 cup bleach down the hold and let it sit for 20 minutes before flushing with cold water; repeat if necessary.
  4. If the clog does not clear with the above, call a plumber.
  5. If a mechanical defect causes the problem, call your local water department for assistance.
  6. If you discover the problem yourself, be sure to flush it before flushing it with cold water; otherwise, you may create additional problems when you try to fix it yourself.
  7. In some situations, having someone flush the toilet for you is necessary if you cannot fix the problem.
  8. Remember, before attempting to fix any plumbing problem, always shut off the water to your house and call a plumber.

How Do You Fix A Toilet Without Water?

There are a lot of different methods for fixing a toilet without water, and which one you’ll need depends mainly on what’s causing the toilet not to flush correctly. You can either:

  1. Fill a bucket with water and pour it into the toilet.
  2. Use a plunger. You may have one in your garage, shed, or basement. If not, use a tube of kitty litter with its contents emptied over the toilet bowl and then placed in the bucket in place of a plunger.
  3. Use vinegar as a flushing agent. You will need a bowl of vinegar and a long-handled strainer.

Pour the vinegar into the toilet bowl, then slowly pour the contents of the strainer into the toilet bowl.

The vinegar will help break up any clogs on your pipes and also neutralize any odors that may be present in your home.

  • Use a wet vacuum cleaner. This is a good option if the problem with the toilet is not fixable by pouring water into it or using a plunger.

Using the wet vacuum, suck out as much water as you can from inside the toilet bowl, and then add enough water to flush it and drain it out completely. 

Why Does My Toilet Bowl Not Fill Up with Water After Flushing?

1. Faulty Fill Valve

If the fill valve is old and has a crack in it or is rusty, it may have developed a leak that is letting the water in a little at a time. When this happens, the water will fill up and settle before it flows into the bowl.

2. Bad Drainage

The drain pipe is not appropriately connected to the overflow pipe and allows too much backflow from the bowl, or a third party could have plugged it with something like a cap or plug.

3. Wrong Toilet Float Height

The float can hang too low or get stuck between the water level and the filling tube. This also causes a delay in filling time.

Does Water Evaporate Out of Toilet Bowl?

4. Overflow Tube Problems

If the overflow pipe is blocked, this will also delay the time it takes to fill the bowl. This is because once the water level reaches a certain point, it has to flow out of this pipe.

If you plug the pipe with sand or rust, it will prevent this from happening.

5. A Leaking Flapper

If the flapper is broken, it may leak air when the water first rises through it, causing the toilet to flush slowly.

If this problem is coupled with a slow-flushing toilet, it causes a blockage in the vacuum tube that connects the bowl to the tank. This also causes a delay in filling time.

6. Cracked Overflow Tube

If the overflow tube is cracked, it allows pressure to build up in the tank, which will cause it to overflow. This also causes a delay in filling time.

What Affects The Water Level In The Toilet Bowl?

The Amount Of Water In The Tank-The more water in the tank, the higher the water level will be
If there is insufficient water in the tank, then it may overflow or leak
The Size And Shape Of The Bowl-If the bowl is short and wide, it will take up more water. So, the water level will be higher.

-If the bowl is long and narrow, it will need more space to hold much water. So, the water level will be lower.
The Design Of The Flush Mechanism-If the flush mechanism pushes the water out too fast, it will rise high in the bowl.

-If it pushes the water out slowly, it will stay high in the bowl.
The Amount The Handle Is Pulled Up-If you pull up on the handle a lot, then water will rise high in the bowl
-If you don’t pull up on the handle at all, then water won’t rise as high in the bowl
Blockages In The Drain Pipe Or Sewer Line-In case of a drain pipe clog, the water won’t go down. So, the water level will rise in the bowl.

-In case of a sewer line clog that isn’t resolved, then sewer gases can come up into your home and cause odors.

Why Should I Put A Red Cup Under The Toilet?

There are many reasons why you should put a red cup under the toilet.

Let others know that the toilet is not currently available. Also, if anyone else is using it, you’ll know from the red cup.

  1. To prevent others from using the toilet while it is being repaired or cleaned.
  2. To indicate there is no toilet paper in the toilet.
  3. To show you have turned on the water supply to flush your toilet, but the toilet isn’t finished flushing.
  4. To show you are potty training your child.
  5. Prevent accidents like wetting the floor and others falling off the toilet.
  6. To protect the toilet from dripping water and other splashes.
  7. To show you are using cloth diapers that require special attention to clean, you should put a red cup under the toilet to keep it clean for your babies after they use it without all fluids getting on the floor or toilet seat.

What Happens If You Put Baking Soda In The Toilet?

When you put baking soda alongside some vinegar in the toilet, it forms a chemical. The reaction helps clear your toilet and pipe clogs.

Some plumbing experts even recommend this method to help clear a clogged drain.


This method works best when you mix baking soda and vinegar on your own instead of buying them in a pre-mixed product, as the reaction is more powerful.

Here’s how to use the process:

  1. Pour some baking soda down your toilet while it’s empty.
  2. Pour 1 cup of white vinegar into the toilet while it’s full.
  3. Mix the two ingredients in your toilet bowl with a spoon or toilet brush.
  4. Wait for 20 minutes, and flush the toilet.
  5. Repeat steps 1-4 every day for about 1 week. If your clog is still there, repeat steps 1-4 once a month to keep the clog from forming again.
  6. About one month after the flushing, put something heavy in your toilet, like a brick or bag of marble. This will act like a plunger and pull out any remaining clogs in your toilet.
  7. Flush the toilet, and clean it with a brush or rag.


Toilet bowls are not just pipes in the middle of your room; they can bring you a lot of convenience and comfort if adequately maintained.

Ensure that you have the proper knowledge and skills to deal with all the problems that you might encounter with your toilet.


Hi! I' am Tyron. I faced many questions from customers about different products, and there was hardly any help on the internet. After learning all the things about these products as a manager the hard way, I decided to start a blog and help other people.

Recent Posts