Prior to draining the toilet tank, test for possible leaks by squeezing a few drops of food coloring into the tank and checking back the following morning. If the water in the bowl has changed colors, it means you’ve got a leak. Rotate the shutoff valve until it stops turning to ensure that the water is completely off.
The majority of water flow problems can usually be traced to the components located in the tank of the toilet. [4] X Research source Be careful not to drop the lid or handle it carelessly, or it could break.
While the toilet tank contains many small parts, your attention should be focused on the two main components: the fill valve and the flush valve. The fill valve is a narrow vertical tube that refills the tank, while the flush valve is an opening at the bottom of the tank fitted with a rubber or plastic flapper on a chain that releases water when the toilet is flushed. [6] X Research source Pay particular attention to the condition of the ballcock arm (balloon-like rubber ball on the fill valve that gauges the water level), and the chain on the flush valve. Shake it to ensure there is no water inside. If there is, it needs to be replaced or the toilet won’t fill properly.
Broken and damaged parts should always be replaced as soon as they’re brought to your attention to avoid more extensive repairs later on. Only buy parts that are compatible with the model of toilet you’re repairing.
Do not attempt to change your toilet’s fill level while there’s still water in the tank.
Ballcock valves make use of a floating rubber ball to gauge the water level, while cylinder valves can be set to designate the cutoff point. [10] X Research source If there’s any obvious damage to your toilet’s fill valve, the wisest option is to simply purchase a new one.
You may need to use a screwdriver, coin or some other slender object to change the position of a ballcock stem. For newer toilets with a sliding cylinder, the adjustment for water level is a small screw located on the top of this cylinder. Take note of the normal water level, as indicated by hard water discoloration. This will give you an idea how much water is typically needed to achieve a satisfactory flush. On some newer toilets, the manufacturers specify the optimal fill level with a line etched on the interior wall of the tank. [12] X Research source
It may take you a few unsuccessful tries before you finally get the water level exactly where you want it. Be careful not to set your toilet tank to overfill. This will cause it to run incessantly in an effort to drain excess water, which is wasteful and expensive. [13] X Research source
Since your toilet will be out of commission for half an hour or more while you clean it, schedule the project for a low-traffic time so that it won’t be an inconvenience.
Vinegar contains mild natural acids, which makes it perfect for disinfecting and dissolving dirt and grime safely. Make sure the rubber flap of the flash valve is securely closed before pouring in the vinegar.
Over time, mold, mineral deposits and other gunk can build up in the siphon jets. This makes it more difficult for water to flow through them, and the result is a much weaker flush. If you’re having trouble getting the tape to stick, try dabbing the area around the jets with a towel before applying it.
For best results, allow the vinegar to soak the clogged jets overnight.
Plan on cleaning out the jets of all the toilets in your home about once a year, or whenever you observe that flushing power is suffering. [20] X Research source Baby bottle brushes are great for cleaning the jets.
