YOU DON'T
It is pre determined by the seal of the trap
Basically when the toilet is designed the volume of retained water at the bottom of the toilet is calculated so that it stops effluent gasses coming back up the stench pipe in to the toilet and also to stop waste that goes down sticking to the bottom of the bowl.
does the water level of a sink goes up or down after I submerge a bowl
does the water level of a sink goes up or down after I submerge a bowl
what controls the water level in a toilet
well, you flush the toilet bowl... but if your reeally aasking, you add water that is in a bucket!!
Because of the 'U' bend without some form of blockage the water level in the bowl remains the same
In the old fashioned ones, a ball on an arm. In the newer, more efficient kind, a cylinder slides up the sleeve of the fill valve.
In the tank no problem in the actual bowl YOU Cant
Because of the design of the internal trap
It can happen several ways; Left alone the water will evaporate, The weather outside maybe windy causing a vacuum across the roof vent pipe, using a sink or toilet on a lower level of your home may cause some reduction of the water level... etc.
it is below grown level have you checked the level of water in the bowl?if it is not up to maximum level the toilet will not flush properly to check that , fill the bowl slowly with water using a bucket or some other container until the level stops rising then mark this level with a pencil . then flush the toilet and let it refill if the level in the bowl is not up to the pencil mark you need to adjust the fill tube flow . there are two screws on top of the valve one for the tank level and the other for the bowl level good luck
2" or 3" integral trap built into toilet bowl.
You can't, the water level in the bowl is a design feature and is set by the way the drain is cast in the base.
clay used in making the porcelain bowl or the trace minerals that are in the water in the toilet bow.
Not the bowl, the tank
You would need to pour the water into the bowl.
No, the water in a toilet does not spin one way in the northern hemisphere and spin the opposite direction in the southern hemisphere. The spin of the water in a toilet is determined by the shape of the toilet bowl and the flush system, not by the direction of the Earth's rotation. In a toilet, the water is flushed by a flushing mechanism. This flushing mechanism is usually activated by pushing a lever or pushing a button, and it causes water to be released from the tank into the bowl. The shape of the toilet bowl, as well as the type of flushing mechanism, determines how the water will move once it enters the bowl. When the toilet is flushed, the water quickly fills the bowl and then begins to swirl around. The force of the swirling water will cause it to push against the sides of the bowl and create a whirlpool effect. As the water circles around the bowl, the shape of the bowl determines the direction in which the water will spin. The water will usually spin in a clockwise direction in the northern hemisphere and in a counterclockwise direction in the southern hemisphere. The spin of the water in a toilet is determined by the shape of the toilet bowl and the type of flushing mechanism, not by the direction of the Earth's rotation. The shape of the bowl and the type of flush system will determine the direction in which the water will spin, regardless of which hemisphere the toilet is located in.
Under what circumstance? New toilet, when you turn the water on, water goes down the overflow tube to fill the bowl. You don't have to flush it the first time to fill the bowl.
NO.