I've just ordered a litre of this stuff ("pH Down"):
http://www.growell.co.uk/p/0130/pH-Up-and-Down.html
It seems to be the strongest phosphoric acid solution available in a consumer product here (and easier to find than ice machine cleaner,) so fingers crossed!
I'll post my findings when I've had a chance to play with it.
http://www.growell.co.uk/p/0130/pH-Up-and-Down.html
It seems to be the strongest phosphoric acid solution available in a consumer product here (and easier to find than ice machine cleaner,) so fingers crossed!
I'll post my findings when I've had a chance to play with it.