I have a steam shower from Di Vapor and in it is a device called ozone (I think), and it turns on after the shower session for 15 minutes. This is meant to kill any bacteria in the air, preventing mold. I have noticed that I don't have to clean the shower as often as I usually do, so I put it down to the ozone. It's worth a shot. I have another tiled shower which had mold on the grout in-between the tiles. I scrubbed all the mold off but the grout was still discoloured, so I went to B&Q grout cleaning spray and got a . It cleaned the tiles a little bit but didn't do the job. I ended up putting a bottle of thick bleach in a squirt bottle, putting on some masks, and spraying the grout with this thick bleach. I left it for a number of hours, when I came back I rinsed it with the shower head and the grout was gleaming white; like new. I was a very happy chappy!
