Because we have a biological wastewater treatment plant, we cannot use any kind of cleaning agent, lest the bacteria die in the tank outside. So we always clean Cycle We have iron in our water, and the orange iron discolouration came off with the previous gel (from the tub and sink if we left the toilet cleaning gel on for several hours), and now this foam seems to be working nicely in the same way.
I'm so used to harsh chemicals that the other day I helped a friend clean her house and their regular cleaners literally made me sneeze, dried my hands out and left me smelling the strong odour of their floor cleaner on my clothes for a long time. It is much more soothing and healthy to Cycle.