Kevin Cook for Idaho Senate Ribbon

For most homeowners, plumbing issues can be overwhelming torture that is often solved through DIY tricks or seeking help from professionals. One of the most common plumbing issues is the toilet bowl’s water level- it can either be too low or too high. But let’s focus on the former – what do you do if the water level in your toilet bowl is too low? Here are some simple DIY tricks that you can use to raise the water level in your toilet bowl.

Adjust the fill valve 

The fill valve in the toilet is responsible for letting water into the bowl after flushing. Failure of this valve to function well could cause the water level to drop. To adjust the valve, locate the water supply valve and turn it off first. Then check the float mechanism in the tank and adjust it. The float should be slightly elevated, preferably an inch above the valve’s water line. Once you’ve made this adjustment, turn the water supply valve back on and let the tank refill.

Clean the rim feed holes 

Another common reason for low water levels in a toilet bowl is blockage of the rim feed holes. These holes are located underneath the rim of the toilet bowl and are responsible for aiding in the refilling of the bowl after each flush. If they get clogged with debris and hard water deposits, the water level drops. You can use a thin wire to clean these holes or use a commercial cleaner that can be poured into the overflow tube to clear debris.

Check the toilet bowl trapway 

The trapway is a narrow passage on the toilet bowl’s base that connects it to the drainpipe. Its function is to prevent sewer gases from escaping the drain line. Hard water deposits and other debris can clog the trapway, preventing water from entering the bowl. To clear it up, you can use a toilet auger or a plunger to push out the clog.

Raise the water level in the tank 

If all the above methods fail to raise the water level in the bowl, try increasing the water level in the tank. A higher water level in the tank will force more water into the bowl, which could increase the water level. To do this, locate the level adjustment screw on the fill valve and turn it clockwise to raise the water level.

Seek Professional Help 

If all else fails, it’s time to leave things to the experts. Plumbing can be tricky, so if you have tried all the above methods without any success, don’t hesitate to seek professional help. Skilled plumbers like S3 Plumbing have all the necessary knowledge and tools to diagnose the problem and fix it.


A low water level in your toilet bowl can be frustrating, but it’s a problem that can be solved with these simple DIY tricks. You don’t have to break the bank or endure the inconvenience that comes with a clogged toilet. Next time you experience a low water level in your toilet bowl, try out these methods and watch your toilet restore its functionality. If it fails, don’t hesitate to call in professional plumbers to help you out.