How to Increase Water Flow in a Toilet Cistern

Over the years, the design of the toilet has remained the same. Nearly all modern toilets contain a water storage tank that holds water above a flapper. When you flush the flapper is raised and water released into the bowl to push waste into the drain.

A weak flush can be caused by a slow flow of water in the cistern, which can be a massive waste of water since you will need more than one flush to drain waste from the toilet. Fixing an issue like this will go a long way into ensuring your toilet is up to standard and saving you water. Check out how to increase water flow in a toilet cistern.

Steps on How to Increase Water Flow in a Toilet Cistern

Checking for leaks and damages

The main reasons why there is a slow flush in the toilet cistern is because there might be a leak on the toilet cistern. Additionally, the mechanical components of the toilet have been damaged. To increase the water flush, you must address the issue.

First, you will need to cut off the water supply to the toilet by locating the valve and shutting it off. Remove the water tank lid and place it gently on an even surface. Pour a few drops of food color into the cistern and observe. If there is any colored water appearing on the bowl or the cistern, know that there is a leak. Identify the area and seal it off to avoid leaks.

Damaged mechanical components of the toilet may cause a slow flow, to increase the flow of water, you must check for cracks and wear. When you find some, repair by sealing the cracks or replace the components if the situation is severe. Only buy parts that are compatible with the toilet model you are repairing.

Adjusting the water level

To have the perfect flush, set the water level inside the tank at a proper level. The recommended water level in the water tank is one inch below the overflow tube.  To be able to adjust the water level first, you need to cut off the water supply to the tank by shutting off the valve. Second, empty the water tank for you to be able to make adjustments.

On standard toilets the overflow tube is positioned at one side of the tank, one can manually reset by using a screwdriver. An adjustment can be achieved by removing the screw at the top of the cylinder and raising the cylinder.

Make sure that the tip of the cylinder is not too high, or water will overflow when you refill. Open the valve to allow water into the storage tank and flush to test. If the flush is not satisfactory repeat the same procedure of adjustment until you get the desired water pressure and then return the lid carefully to the required position.

Cleaning up clogged components

Piled up debris inside the water tank can reduce the flow of water into the toilet bowl, to increase the rate of flow of water, one must remove the clogged debris. First, empty the water tank and source of water cut off

Reach inside the tank with one of your hands and pull up the float cup, hold it up and do not allow the float cup to drop or the valve shaft to turn. Take your other hand and with your thumb, turn the cap lever anticlockwise to unlock. Remove any dirt or material found beneath the cap, using water clean thoroughly every component inside the water tank. Reassemble the parts and tightly lock the cap arm to prevent leakage.

Another method of cleaning clogged up material in the water tank is by use of vinegar. Pour in roughly a gallon of white vinegar into the tank. Vinegar has mild natural acids good for disinfecting and dissolving dirt. Duct tape the siphon jets inside the bowl and flush the toilet. As the water from the tank to the siphon jets, it will find a barrier of tape thus the pressure of water cleans up any clogged up particles in the siphon jets.

Final Words

A low-pressure toilet cistern can be a headache, especially when you’re in a rush. In this fast-paced life, no one has the time to sit around, waiting for the cistern to fill up slowly. To combat this problem, it is better to do regular cleaning of the cistern to ensure that there are no items that might cause clogging and obstructing water flow. You can also ask for professional help from a plumber to help identify any performance problems and fix them.

There might be a problem with the installation of the machine, and you can remedy this by taking the cistern apart. Make sure everything works as it should when you reassemble it. If the problem is with the strength of the cistern itself, you might want to consider buying a new cistern to fix your water flow issues.