I agree with @MitchellMc that it is most likely the flush pipe, since you say that it stops if not used for a while. If it was pan being cracked, it ...

I also agree with the Bunnings experts (you know who you are) I to noticed a small leak in the loo that became bigger so plugged it up the best way I ...

Welcome to the Bunnings Workshop community @tusshhar. It's wonderful to have you join us, and many thanks for your question about fixing your toilet. ...