I knew I'd be buying kits, but only just started to look at the cost-a lot higher than I expected!
I think I read the liquid ones are better?
Is there a cheap (er) place to get ehm?
Alternatively, I work in a school science dept, so have access to a wide range of chemicals. Is it possible to produce anything useable yourself?
I think I read the liquid ones are better?
Is there a cheap (er) place to get ehm?
Alternatively, I work in a school science dept, so have access to a wide range of chemicals. Is it possible to produce anything useable yourself?
