On 21/03/2017 11:14, The Natural Philosopher wrote:
On 21/03/17 11:08, mechanic wrote:

Apparently use of chorine bleach frowned on my the manufacturers,
something to do with surface coating on the pans/basins.

Is that why nearly all loo cleaner feature chlorine?

The surface coating is - er - glass as in 'vitreous enamel'.

Only possible candidate for problems with chlorine would be a fibreglass
bath.

And Expensive japanese self-cleaning loos