On Jul 11, 9:52 am, ValveJob wrote:
I have white enamel toilet seats and I clean it once a week.

Underneath the toilet seat, I often find several reddish brown stains
the size of a quarter or bigger.

The stains always clean right off, but I'm wondering what in he heck
they could be.

Don't grunt so hard, it causes splash back.

[8~{} Uncle Monster