> Before everyone jumps all over me. Hydrochloric acid is used by brick
> layers to clean brick work, and to clean concrete driveways, and its
> also used adjust pH in swimming pools. Yes, you have to be carefull
> because it is a STRONG acid. Wear eye and skin protection, and use in
> well ventilated area, you should be doing that anyway with the Ferric
> Chloride.
We find it hard to get such things in the UK, I looked at this last
year, as my FE was getting exhausted etc, still using Fe and will be
buying more at the york ham radio rally on the 6th, but only because I
cant find a way to buy anything else.
We just dont have chemical supply companies over here unless your a
business that needs them, or a dept of education/school
I can buy ''drive cleaner'' and it does have a strong eggy sulphur
type smell, but dont know really what it is.
Hell I'm off to the garden center to see whats in the stuff!
maybe I have found a source....