On 07/26/2017 03:44 AM, Bob wrote:
Hello,

Could anyone please suggest a toilet bowl cleaner that
actually works, other than the one(s) that are apparently
nothing but Hydrochlorlic (HCl) acid ?

And, anything specific for that bluish-green stain
that is fairly common I imagine ?
Possibly some kind
of Sulfate deposit from the water itself ?

Thanks,
B.

Blue means copper.

Maybe this link will help:

http://www.wikihow.com/Remove-Copper...hs-and-Showers