I once used vinegar to clean my toilet. It worked great. First I mixed vinegar with cornstarch and then cooked it a bit until it was thickened. I put the thickened vinegar on the inside sides of the toilet bowl and let it set. It cleaned up great. But SHORTLY AFTER I NOTICED A LEAK IN THE TOILET AT THE BOTTOM and we needed a new wax seal. Was that a coincidence or did the vinegar deteriorate the wax seal? I want to use the vinegar again, but I don't want to have to replace the wax seal. Thank you.