And one more question. If you'd bored with all this, just ignore it.
I'm interested in the business side of this. How can a product in general can be cost effective when you're wasting more than 90% of it.
Most of the water goes for shower, washing, irrigation.
If you have a business and want to market your product, if somebody would tell you to use lets say just half of it and the rest throw it in the garbage, you'd think that person is crazy, wouldn't you?
I am not arguing that there are benefits:
the Victorian community of around $1 billion, through avoided dental costs
But is this the best way to market a product? To waste 90% of it? I never studied marketing, but wouldn't it make more sense to only use a product for what it is tend to be for?