Caravan toilets

hazphil
hazphil Forum Participant Posts: 1
edited November 2014 in Caravans #1

I have had black pieces emerging from my toilet flush tank. I have spoken to a caravan service engineer, and he informs me that if I use pink slushing fluid in the flushing tank, then that is the cause.He also says that filling flush tank with a
mixture ob "Milton" , waiting for an hour, then flush out, then this will cure the problem.

Has  anyone else had this problem ? .