Aeration of the water can improve the "feel" of the showerhead spray pattern, but it does so by inadvertently reducing the showerhead's energy saving effectiveness. In the aeration process ambient air (70° - 80°) is drawn into the showerhead and rapidly mixed with bathing temperature water (100° - 107°). The introduction of the much cooler air, as much as 30°cooler, can lower the temperature of the water as it exits the showerhead. To compensate for their cooler shower many people find it necessary to increase the temperature of the water entering the showerhead by turning-up the hot water, raising the temperature of their hot water heater, or both.
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I no longer consider 2.5gpm as "low flow"
These are fairly normal now
Dave, Any experience with the ones you mentioned?
The Evolve one looks like it might be pretty good, but I don't like the Delta/Alsons due aeration.
The Evolve site has some commentary on the use of aeration.
This is awkward, but...
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