Did you both miss the part where I said we all need to do what we can, and that I personally do reuse my hydro water whenever possible. I also recycle all my glass, plastics, and paper, I have a compost pile where I compost organic waste, and reuse it for planting.
By the end of summer I'll also have rain water collection barrels on all the gutters of my house. If we are gonna talk about water conservation then that's a hugely missed opportunity. I only know one other person that collects rain water in real life, and have only seen a few growers on here that use it. Once this is set up, it will provide me with all the water I should need for my gardens since I live in a reasonably wet part of the country.