Chris French and Helen Johnson wrote in
:

Ok...I only got a 'C' in chemisty (And it was a bloody long time ago!)
so I got the wrong type of paper!
Ok i'll let you off :-)

Gee, thanks! B-)

Is it worth getting one?
Depends on how often you intend measuring the pH - for general
gardening no I don't think it is. YMMV.

I really doubt I would ever really do it at all....