1. Same septic as the one I asked previously. But we should have daily capacity around 50 CBM per day instead of 30 CBM
2. On top, we should have a pre-pond to collect all sewage water, and then through a submersible pump (designed to take black water, important), then the black water to the biochemical septic tank than should take black water (last specs, I had the impression that it was also for black water).
3. Normally, to complete the system, we should use some chlorine (often is NaClo in diluted solution) to kill all remaining bacteria. Maybe the solution proposed doesn’t need it if they are already chemical agent inside
4. In all this, residual sludge will be generate. I need to know the biochemical septic tank sludge tank capacity to know how often the vacuum truck should come to remove it.
5. One issue remain for which I need advice : you mention the biochemical septic tank cannot take laundry water. what can you supplier propose (can we add a module after laundry main sewage line to remove chemical, like we use a grease trap to remove grease ?)