I can only base my conclusion, based on toilets. But it seems that using high pressure is more cleansing/flow than trying to trickly out water and scrubbing.
Yes, I agree. But you have to look at the whole picture. It depends on the fixture type and where the source of higher pressure is coming from, the general supply pressure, or the restriction caused by the fixture that increases pressure. In the general perspective of a whole household supply pressure is where to actually start.
Example, Yes smaller ports in a shower head or a toilet designed to utilize higher pressure will save volume. But with fixtures like sink faucets and water hoses that have no restriction a higher supply pressure will use much much more volume in one minutes use time at 85 psi than it would at 35 psi.
So I guess I am saying that if one wants to truly save water to a household as a whole, regulating the general supply pressure first is the best way to do it. If not, then whatever you save at those particular fixtures is completely negated by the other unrestricted flow fixtures in the home or facility.
A combination of both overall supply pressure reduction and an increase of fixture pressure is the most advantageous set up for a household or facility. Many here in the desert southwest install supply pressure regulators because water is so scarce and expensive. Doing this can cut the overall water bill by 30%. But what it will not do is make a gallon of water any smaller. If you require a gallon you are going to use a gallon. But it greatly reduces any wasted gallons from the unrestricted fixtures. :)
You buy the toilet that flushes the way you want it to, or the shower head that runs the way you prefer, not based on the incoming water pressure to your house.
That’s true. The standard toilet flush typically uses about 1.3 to 1.6 gallons of water, but the capacity of the tank plays a crucial role in determining the flushing power. A larger tank, say 5 gallons, provides a more robust flush compared to a smaller 2.5-gallon tank, but both use the same amount of water per flush.