Toilet bowl not holding water?

Question

Just installed a new toilet. The toilet works fine, however after about fifteen minutes, the bowl is dry. All of the water is gone. There are no leaks. What could be causing this?

Please, I urge you, only serious answers!

Answer 1

How could you make a claim that there are no leaks? The water is going somewhere, right?

If it works fine and water is in the bowl after flush, it is probably not a venting problem.

There is probably a crack in the base, and the water is able to get to the subfloor without being visible at your bathroom floor. But it could be doing some serious damage, and you can't see it until it is too late, and your toilet falls through the floor.

I recommend shutting water off, not using the toilet again, and calling a plumber.

The reason I say the leak is at the bottom, is that there is a built in trap in the casting of a toilet. It looks like a sideways "S". It keeps water in the bowl after you flush. The only ways to lose the water are:

1) Improper venting causing water to syphon out. This would happen after flush and bowl would be dry right away.

2) Enough negative pressure in your vent/ sewer system to make water climb over the trap seal. Maybe if you live somewhere where the wind blows like 200 mph constantly, but even then, highly unlikely.

2) Something removes the water. You don't have a house full of great danes, do you?

3) Evaporation. It isn't 2000 degrees in your bathroom, is it?

4) Toilet installed so far out of level that the trap design is ineffective. We'll assume that the toilet is reasonably level. Anyway, this would also result in a dry bowl right after flush.

5) THERE IS A LEAK.

Answer 2

What do you mean by "all gone"? The new toilets use less water then older models. Part of the reduced usage is that the standing level in the bowl is probably much less then you might be used to. You should still have some water level in your bowl though to cover the trapin the toilet and keep sewer gasses from escaping.
If you really do have all the water draining out of the toilet, the first thing I'd have checked is your vent line on the toilet. If the vent is blocked, the siphon effect when you flush the toilet could pull any excess water from the toilet. But I would think the flush of the toilet would be "slow" with the vent plugged. You might not be able to notice it with the new toilet.

Answer 3

If all of the water is gone from the bowl, it sound like a defective toilet. The way toilets are made there should always be some water in the bottom. It may be leaking internally and you would not see leakage on the outside.

Answer 4

It sounds like you have a stoppage in the sewer main. Here is a simple test. Fill a 5 gallon bucket with water, and try and pour the whole bucket at one time into the bowl. If it won't take all the water, you have a stoppage downstream of the toilet, and the main needs to be "snaked" out. If it does take the whole 5 gallons, then you could have a vent problem.

Answer 5

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Answer 6

You may not SEE leaks, but it's definitely leaking, probably around the wax seal and into the flooring and drain below it. Best bet is to call in a plumber. Good luck.

Answer 7

If you didn't have this problem with the old toilet....That water is going somewhere....Did you use a new wax ring?

Answer 8

the rubber stopper isn't holding its seal,take vasaline and rub it on the bottom of stpper and around the edge of drain hole ,if that doesn't work replace the stopper.

Answer 9

make sure that it is sealing correctly where the water is leaking out. its probably leaking into the drain so thats why you can't see it.

Answer 10

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