3 Causes of Low Toilet Water Level

Your toilet water level is something that you should be paying close attention to. You will find that whenever there is something wrong with your toilet, more often than not, it is the toilet water level that is to blame. The best way for you to be able to fix the problems is to know what the cause is so that you can stop it. Below are a few of the most common causes for low water levels.


There is a tube that runs along the top of the ballcock. It is 1/8 inch and goes along the top of the overflow tube. You will need to make sure that this tube is properly connected to the overflow tube. This tube is what runs the water directly into the actual bowl as your tank fills itself up. The tube will need to be able to fill and connect in order to work properly. If it is not, then you should get some pliers out and adjust it properly. Make sure that you do not tighten it too much. If you do this, then you could cause damage to the tube as well as to the tank itself. The tube will need to be tight but not so much that it runs the risk of busting. This could end up being a much more difficult problem to fix.

Bowl Defect

You may also have to deal with a defect that is in the bowl. The casting that is in the bowl could cause a small bubble in the china. Whenever this happens, it is often that the manufacturer will not get rid of the bowl but will instead put a porcelain patch over the hole. This is something that is often just a temporary fix. The patch will often fail, and this means that the water will begin to seep out of the bowl and cause a problem with the bowl’s ability to maintain a good and necessary amount of water. If this is something that has actually happened, then the toilet would be completely full after it has been flushed, but a few hours later, the bowl level will have dropped significantly.


You may also find that the toilet float is tangled in the chain or is having other problems that could cause the water to continue to run. Whenever the stopper is not able to come back down to allow the water to fill up, then the water level will never have the chance to become full. Whenever this happens, there are a few things that can be done that will allow the stopper to work again successfully. You will need to first attempt to see how the chain is length-wise. If the chain is too long, then it could become tangled in other things or could get in between the stopper and the hole. However, if the chain is too short, then the stopper will not be able to go down all of the way.