Cleaning the campers shower what product to use?

I need help, we want to remove the soap scum but as I remember only certain products are allowed or will damage the plastic? What does the Nation use?

It was recommended to us to use Soft Scrub…

Yes be very careful what you clean the shower with, I think Soft Scrub is far to harsh! It will scratch the surface. I would recommend Scrubbing Bubbles:

For those who have glass walls, I like to use RejeX on the glass to prevent any water spots. It is also what I “wax” my exterior with. Prevents you from getting soap and hard water stains on the glass.