wroughtn_harv
Super Member
Harvey, when that day rolls around, we may have green carpet for lawns and artificial shrubs/flowers. Easily the #1 use of water is landscape watering. Sanitary sewers account for only a small amount of the total use. I think we may still use water for sanitary purposes in 20 years, but it will probably all be treated/purified and returned directly to our water supply.
I don't see artificial lawns but I do see more appropriate choices in plants and designs for the locale.
If you live where there is sewer service you will notice on your bill that for every gallon of water you use there is another charge for that gallon being processed as sewage. That's why all the big water using homes in Dallas have two water meters. One is charged the sewer rate and the other is not because it is dedicated for landscape maintenance.