Posted on 12 Mar 2013
We use "One-Chem" - it can be used in both the toilet cassette and the flush tank - and we like its smell!!! A tip I was given last year wasto buy a cheap round wc block (the type you drop into your home wc cistern) cut it into sections, wrap in foil to store, then unwrap one and drop into the flush tank as required. A cheap alternative.