I need to know how much peroxide to use. I plan on having tank pumped, d box pumped, letting it rest for a couple days and dosing d box multiple times over a 4 day period (like the sodium perc stuff)with hydrogen peroxide. I will then dose the drainfield with the septic seep (I have a lot of clay with green grass over drainfield). The only thing I am unsure of is how much hydrogen peroxide to use. Please help.