aaronnorth
www.ukaps.org
i would just buy it, it lasts a few year for about £6! i use about 3ml every week, so it will last me 1.5yrs.
http
/www.aquaessentials.co.uk/index.php?...roducts_id=1447
RO can be used and so can baking powder.
http
/www.aquaessentials.co.uk/index.php?...roducts_id=1447RO can be used and so can baking powder.
