I used the hardware store muriatic acid (hate the old names :)),
which is about 37% HCl, or about a 11.1 Molar solution. Just incase
folks were wondering :)

On a more serious note, I should have mentioned eye protection etc,
and, DO NOT add water to acid, but add the acid to the water.

Just remember the phrase "never give acid a drink"

cheers

alistair

On 3-Aug-10, at 4:48 PM, Larry Alofs wrote:

For those who do not have access to a lab stockroom, we might mention
that HCl is also available at hardware stores, etc, as muriatic acid.
Do not use full strength.  I would dilute with water about 3:1.  Wear
eye protection and if it gets on your skin, wash it off promptly.
   Better living thru chemistry.

Larry A.

On Mon, Aug 2, 2010 at 9:12 PM, Alistair Bell <albell@shaw.ca> wrote:
> Another scintillating post :)
>
> I cleaned out the water tank with a solution of HCl, before and after
> pics here:
>
> http://shufti.wordpress.com/2010/08/02/westy-water-tank-cleaning/
>
>
> alistair
>