Why Your Toilet Quickly Goes Black After Using Bleach
Matt Besley on 14-3-2017
In the cleaning world, bleach is possibly the most over-estimated and least understood products on the market.
If you are cleaning your toilets with bleach, and wondering why they go black so quickly afterwards, here's why.
Here's the fact that most people overlook: Bleach does not remove limescale...it just whitens it. So when you have just bleached the toilet, the toilet pan will be white. Turn your back and its back to black again. Ok that's probably a bit extreme, but you will find the toilet pan going black pretty quickly afterwards.
So the answer to this?
Simple - just use an acid toilet bowl cleaner, which will clean the toilet better, and you wont of course have the same safety risks.
Acid is the only thing that will remove limescale. If you have got a large build up of limescale and the toilet is really black, you may need to follow your toilet cleaning proceedure a couple of times to clear through the limescale build-up. The reason for this is that limescale will quickly neutralise any acid, which means that after a couple of minutes, the acid cleaner is neutralised and wont clean any more of the limescale away. Repeating the process will allow the cleaner to clean down through the layers of limescale build-up.