Bowl cleaners containing bleach are often the source of the problem as bleach damages rubber components of your toilet. This could result in a leaky toilet, or irregular flushing. Of course, using bleach in general can have its costs; it can be harmful for your family or pets. To keep everything safe and sound, shop for non-bleach toilet tablets.
There are other, unique options for cleaning your toilet tank, too. Consider using denture tablets. They are designed to remove stains without using harsh chemicals. Drop two or three denture tablets into your toilet tank, let them dissolve completely before flushing. This should be repeated on a weekly basis for the best results.
Baking soda tablets are also a safe option. They can be purchased at a pool supply store; place one in your toilet tank. These tablets will maintain a proper pH in the water, keeping it soft and resistant to mold and mildew. One tablet will last about a month before it needs to be replaced.
Also try placing an Alka-Seltzer tablet in your toilet tank. Let the tablet bubble and dissolve for at least 20 minutes. This should loosen any build up. Help mix the Alka-Seltzer by using a scrub brush in the tank before flushing the toilet.
These are a few simple and safe solutions to help keep your toilet bowl clean without getting your hands dirty.