This is going to sound horrible but it's something I've been battling for the last 3 years to no avail, and DP the last 5 years...
But is there ANY WAY to get rid of a lot of horrible black build up in the toilet bowl? It's all under the water, bleach won't touch it, neither will bleach and the toilet brush.
I'm at my wits end with it and just want it CLEAN!