If you’ve noticed the water level in your toilet bowl suddenly dropping to a dangerously low point, almost exposing the drain, don’t panic! While it’s definitely annoying, it’s usually not a serious problem. Once you understand the cause and take the right steps, you can easily fix it. Let’s break down what might be going on and how to handle it.
When the water level in your toilet bowl suddenly drops, the first thing you should check is whether there’s a leak in the toilet’s trap. The trap, as the name suggests, is designed to hold a certain amount of water, creating a seal that blocks unpleasant odors and pests from entering your home through the drainpipe. If the trap is leaking, the water level in the bowl will naturally drop.
Solution: First, check if the trap is leaking. If that’s the cause and the crack is small, you can seal it with a mixture of marble plaster and hardener. For larger cracks, unfortunately, you’ll need to replace the toilet bowl.
Solution: Replace the toilet seal. Here’s how to do it: First, remove the toilet, then take off the old seal and clean the area around it thoroughly. Next, install the new seal securely on the toilet’s outlet at the base. Afterward, connect it to the flange of the waste pipe. Once everything is in place, don’t forget to apply silicone sealant around the joint between the toilet and the floor.
Solution: Use a plunger or other clearing tools to unclog the toilet.
Reason 4: Main Drain Line is Clogged
If none of the above issues are the cause of the low water level in your toilet, it's likely that the main drain line in your building is clogged. When this happens, the pressure can't equalize, and whenever someone flushes a toilet in an upstairs or downstairs apartment, the water in your toilet can get sucked out.
Here are the causes and solutions for the low water level in your toilet bowl. I hope this helps you!