If you can't get hydrogen peroxide, maybe you can get the next best thing:
sodium percarbonate
Sodium Percarbonate is extremely effective the 1st time it is used.
See my on-line doc for details: http://tinyurl.com/Septic-Solutions
Septic Seep is for breaking the hardpan, and peroxide or percarbonate is for breaking up the biomat.Two completely different subjects.