Branded Chemicals

[matthewc]

Should I stick with the bigger brands when buying chemicals such as Bromine tablets and PH Minus(Dry Acid)? Or are they all the same? I can buy a 5Kg tub of Bromine tablets from a manufacturer called Champion for £38, whereas 1Kg from Sunspot cost £17.

Any thoughts?

[huh?]

Compare ingredients and percentages.  Typically the bigger names will be more concentrated= you will use less.