Hi
Two probs really, one, tide mark where kids use bath and don't empty the water straight away and two, I have a shower above which is used constantly, so there are marks where it is stood in!!!! (no limescale)
I haven't tried anything particularly heavy duty as I haven't had experience with this type of surface so just the normal products, bleach spray etc, have not tried anything abrasive.
Any advice would be much appreciated.