If H2SO4 is always added to the H202, I guess spiking isn't an option.
I typically add H202 to the bath(spike) till bubbling "nicely".  Change
bath at least once a week.

Roger Shile

-----Original Message-----

Hi,
It is definitely add the acid to H2O2.
In Portuguese there is an easy way to remember: H2O2 and water are
feminine nouns in Portuguese, so we always have to remember: ladies
first :)

Virginia Soares