whiteowl wrote:
For commercial units with a biodigester you end up with excess recycled water which you still need to dispose.Nema license to dispose the recycled water costs 80k per year.For a standalone residential house this isn't a problem coz the water consumption is low.
This respectfully, is not true.
For commercial flats, if a tiny 2sqm unit can serve 100 users beautifully
and a 4sqm unit can serve 400 users efficiently
water disposal is of little to no concern
if the soakaways are competently built, EVEN in black cotton soil areas. The water gets disposed into the soakaways easily without any pooling issues.It can even be recycled for trees, lawns and shrubs with no harmful health effects!
Biodigesters that are
properly built exceed all NEMA discharge standards and the daily approvals NEMA gives to large projects that use them is clear evidence of this.
If you ever paid 80k to a NEMA official for a biodigester "license" to do anything then chances are you are being extorted or conned by said officials IMHO.