Acetic acid (strong vinager) or citric acid will give similar results as muriatic acid (concentrated HCl), but with a little less toxicity.  They can still burn, but the straight stuff from the store (20% acetic acid if you can find agricultural vinager -- try an agricultural supply store) or citric acid crystals (sold by restaurant supply vendors or online from bulkfoods.com) is nicer to work with than is muriatic acid.   mcneely

---- Alistair Bell <albell@SHAW.CA> wrote:
> if bleach didn't work, then try HCl (muriatic acid) if you dare. I
> did, and it cleaned up some bleach resistant deposits. I used a
> diluted soln.
>
> http://shufti.wordpress.com/2010/08/02/westy-water-tank-cleaning/
>
>
>
> alistair
>
>
> On 16-May-11, at 1:12 PM, Mike Miller wrote:
>
> > Vanners,
> >
> > I put a Westy interior in my 87. The water tastes pretty bad. I
> > tried a half
> > cup of baking soda, filling it up and letting it sit for a couple of
> > days.
> > After rinsing out still pretty bad.
> >
> > Any ideas for cleaning out the bad taste?
> >
> >
> > Mike

--
David McNeely