Even though water is relatively inexpensive and plentiful now, it is still our goal to reduce our water use in our new home. There are several resources we are using that provide water reduction strategies. The MN GreenStar program http://www.mngreenstar.org/ lists a number of water reduction strategies that we are following and the EPA’s WaterSense program has created a label for water efficient fixtures.
In my experience researching plumbing fixtures the last couple of months, it seems to be relatively easy to find water efficient toilets these days, but much more difficult to find faucets that are low-flow - at least for residential applications. There are plenty commercial fixtrues available that meet the requirements. I spent hours researching and trying to find low flow fixtures that would meet our esthetic goals with little or no luck. Although there are products available, I was trying to select compatible or matching faucets, shower heads and control valves for two different bathrooms. I had almost given up on the low-flow aspect until Kevin drew his line in the sand and demanded that we do better. I decided to stay with the fixtures we had selected for esthetic reasons and research switching the aerators. I finally e-mailed the technical support for both Grohe and Toto to request low-flow aerators. In both the case of Toto and Grohe, they were able to supply a 1.5 GPM low flow aerator for the faucet, no problem. (Most standard fixtures meet a 2.2 GPM flow rate). Neither Toto or Grohe advertised or had information on their websites about their low flow aerator options, which surprised me. My guess is that there is currently not the demand for this option, but this will be changing in the future. We will likely purchase and use the 1.5 gpm aerators for the kitchen sink, but will inevitably change out the aerators to a .5 gpm aerator in the bathroom lavatories. We'll leave the tub alone, as lwering th flow rate simply increases the length of time it will take to fill the tub for a bath.
Grohe Concetto faucet and Toto Nexus faucet
The biggest water hog and last fixture to get a water efficiency makeover is the showerhead. In fact, the current trend is new-fangled features that actually increase water use. Performance showering” is a tempting trend, which includes multiple shower heads, rain-shower heads, pulsating and variable sprays- but the downside is the isignificantly increased water use (including longer time spent in the shower, I’m sure!) Since Kevin believes in the 2 minute shower, this is not the direction we will pursue.
Finding low-flow shower heads is even more difficult than the faucets. The WaterSense program does not have shower heads labeled yet, but is intending to develop a specification for one. So expect some changes in this are in the next couple of years. Until then, we are going to add the low-flow aerator by Delta to our new showerheads. We're able to purchase these low flow aerators at Natural Built Home in Minneapolis for the price of a couple of pizzas. http://www.naturalbuilthome.com/products/water_saving_fixtures_139/