Quote Originally Posted by rwhb12 View Post
they appear to work well
Then that's all you have to worry about.

Quote Originally Posted by rwhb12 View Post
The other question is they say not to be used for non domestic use. I guess this is only because of marketing?
Once you have bought it, you can use it for whatever purpose you like.

Sometimes there are suggestions to replace the air with CO2 but that will cause the developer to become more acidic as CO2 absorbed by water becomes carbonic acid.

p.s. It's oxidisation, not oxidation - and don't let any Americans convince you otherwise!


Steve.