Most detergents will do it - even a disinfectant. Hot water lowers the tension too.
Careful Dave being negative about this product could set window cleaning back 100 years Gary999 is counting
on this to get a spot free window for the first time.
ive been wfp for nearly 8 years 7 using pure
and 1 year not, I always guarantee a spot free finish
Let it go now matey it cant be good for you , just be happy in the knowledge
that your right and every one who buys this product is a numpty.
Now stop being miserable and give us one of your winning smiles