[greeneyes]

What if you had one of your bathrooms set up as a decontamination room? Drainage into septic tank. It would have double doors. One to enter into the area where there is a sink, pass through and enter the next room where there is a shower. Would that work, or is a regular septic tank or aerator not good enough?

[Tilted Irish Kilt]

greeneyes:" Would that work, or is a regular septic tank or aerator not good enough? "

EVERYTHING sounded ideal .. up until you mentioned septic tank (which is an anaerobic digester).
The bleach /hydro peroxide would probably kill off the working bacteria in that anaerobic digester that breaks effluent and feces .
It would probly work if, after usage for DeCon , you dilluted/ flooded the tank , and then re-introduced more beneficial bacteria .
I know that they retail bacteria packages to revitalize septic systems, so it should work with the dilution and introduction of new beneficial bacteria .