To keep a toilet tank clean over time, some people like to add a cup or two of white distilled vinegar once a month to the toilet tank at night—topping it off to about an inch from the top rim, then flushing it in the morning.
What I recommend, that works well is distilled white vinegar. As far as your toilet to keep it clean inside the bowl. Use 1 cup of white distilled vinegar and poor inside your toilet tank, also pour half of that cup in to the overflow, which is the small, round pipe that stands up in the middle of the tank .
Preparing to Clean the Toilet Tank
"The biggest don't when it comes to toilet tanks is bleach—do not use bleach or products containing bleach inside the tank, as it can corrode the internal parts of your toilet. If you are aiming to remove tough stains from the tank, I also recommend white vinegar diluted with water."
Cleaning your toilet tank is a very quick and easy procedure. We recommend using a mixture of ¼ cup of vinegar for every 1 cup of water.
The easiest way to thoroughly clean the toilet tank is to spray it down with a disinfectant cleaning spray such as Lysol or 409.
Cleaning your toilet tank is pretty quick and easy with vinegar and baking soda. You only need to do it once or twice a year, and it can help get rid of bacteria, mold, and mineral deposits to keep you and your family healthy.
Leave vinegar in the tank for several hours, ideally overnight. This allows the acetic acid in the vinegar to break down stains and deposits effectively.
If the clog still seems to be intact, start over at step 1 and repeat the process a couple of times. For extra-stubborn clogs, you can let the fizz mixture sit overnight or combine this method with plunging.
Cleaning with a mixture of baking soda and vinegar in the bathroom can work really well. To clean your toilet with vinegar, pour a cup of vinegar in the toilet bowl and let sit overnight. The next morning, sprinkle a little baking soda into the bowl, scrub, and then flush clean.
White vinegar and baking soda in equal parts is a cost-efficient and effective means of getting rid odors in a toilet. Add them to the tank, mix them in and then use the toilet brush to gently scrub the tank. Let it sit for a few hours, scrub the tank again and flush.
The water tank can get filthy for a variety of reasons, and may get dirty even if the bowl may still look shiny clean. If you find water in the tank that is very dark black color, it's likely to have elevated levels of manganese in your water supply. If there are brown stains, it is probably from iron in your water.
Iron Bacteria, Manganese Bacteria and Sulfur Bacteria
These organisms grow in soil or shallow groundwater with high iron, manganese or sulfur concentrations. Water containing these bacteria leaves behind slimy brown rust deposits in plumbing fixtures and toilets.
Cleaning your toilet regularly with vinegar will prevent hard water stain buildups. Add a little vinegar to the bowl and scrub away stains with your toilet brush once weekly. Since you'll likely have hard water buildups in your toilet tank, a monthly vinegar application up top can keep the whole system clean.
Vinegar and baking soda produce that oh-so-familiar chemical reaction that powers through buildup and loosens tough stains. While it might seem like it's chewing its way through grime, it's not powerful enough to damage the porcelain finish of the toilet bowl.
Cleaning vinegar
It inhibits the growth of bacteria and algae. You follow the same procedure as bleach. For a tank of 100 litres of water, you'll need one litre of cleaning vinegar. Let everything soak in for 24 hours, and then rinse the tank and pipes well with clean water.
As it turns out, you can actually unclog a toilet with dish soap instead of turning to a harsh, toxic bowl cleaner.
By cleaning your toilet tank regularly—twice a year, at least—you may extend the life of your toilet and all of its parts, freshen your bathroom's smell, and save yourself some elbow grease the next time you sanitize your toilet bowl.
Hydrogen Peroxide and Vinegar
“Combining these two creates peracetic acid or corrosive acid, an irritant that, in high concentrations, can harm the skin, eyes, throat, nose, and lungs,” says Bock.
In this case, a basic toilet cleaning product may not be enough, and you will need to use undiluted bleach. As a one-stop cleaning solution, pour one cup of bleach around the bowl. Then tackle every inch with a toilet brush or a handheld scrub brush. Let it sit for five minutes, then flush.