Shower Cleaners: Powders prevail; one green cleaner shines

We recently pitted a dozen spray, powder, and aerosol shower cleaners against each other to find out which are the best at removing deep-seated soap scum, rust stains, and mildew from shower tiles. See the results you'll see in the video (right) and in our report.

In our tests, powder cleaners like Comet and Ajax proved the most effective (and cost the least). Aerosol cleaners didn't work as well and, despite the no-rinsing-needed claims on their labels, left streaks. There's still no substitute for elbow grease. If you're looking for a green cleaner, Clorox Green Works compared favorably to the all of the cleaners. For more details, see our ratings of shower cleaners, available to subscribers.—Gian Trotta

Essential information: Find out which showerheads provided the most effective, relaxing sprays and join in the spirited debate that ensued from our recent "Shower vs. Bath: Which Uses More Water?" blog posting.

Shower or bath: Which uses more water?

“Take showers instead of baths to save energy,” is an oft-repeated adage of water and energy conservation advocates. But the Department of Energy’s water-heater-sizing pages now list the average shower as consuming 12 gallons and the average bath only 9 gallons of hot water. 

The DOE is also saying that homeowners are using from 15 to 30 percent of their total energy budget just to heat water—up from an earlier 14 to 25 percent estimate. So is soaking instead of scrubbing the way to go?

A spokeswoman for the EPA (which provided the figures to the DOE) says the new figures were based on a study it commissioned in 2000 by independent water-engineering-and-management firm Aquacraft. Ten homes in Seattle were fitted with data loggers on the main water meters a separate meter was placed on the feed line to the water heater and the results measured over two separate two-week periods.

“The nine gallons was actually the actual average draw of water into a bathtub, but you’re talking about an event that can involve more than one draw of hot water,” says Aquacraft President Bill DeOreo. “So that’s not an accurate measure of total average use.”

Consumer Reports’ own experts believe the previous 20 gallons of hot water per bath that the EPA was using (which was in turn based on a studies done by the Gas Appliance Manufacturers Association) to be still a better benchmark.

They also stress that the best way to save hot water is to take showers rather than baths, limit the time of showers, use a low-flow showerhead, and turn off any supplemental showerheads in each shower stall.

Many utilities and municipalities are following this advice. The Portland, Oregon Water Bureau has given away over 4,500 1.5- gallon-per-minute showerheads and 4,000 five-minute “Shower Timer” hourglasses to its customers.

“The hourglasses aren’t as functional as the low-flow showerheads and aerators we give away; they’re more of a behavioral tool,” says Sarah Statner of the Portland Water Bureau. “But we get a lot of positive feedback and hear they inspire more conversations about conservation than any showerhead every will.”

Also backing the move for water economy is the popular eco-blogger Crunchy Domestic Goddess, who has issued her own Five-Minute Shower Challenge that’s drawn numerous responses.—Gian Trotta

Essential information: Find out about the wide variety of high- and low-flow spraying options available Showerheads special. Our GreenerChoices.org Web site offers "50 Ways to Save Water." And see our October issue for a special comparing the performance of tankless, or on-demand, and conventional storage-tank heaters.

Kitchen/Bath Industry Show Product Preview: Hansgrohe Croma showerheads

Showering and bathing use lots of water. Indeed, Americans consume more than 1.2 trillion gallons a year to get clean, estimates the U.S. Environmental Protection Agency.

So in this Age of Green, Hansgrohe has introduced adjustable spray showerheads to its lineup. The manufacturer claims the Croma C 100 (shown) and Croma E 100 showerheads give the full, drenching coverage of standard high-end models yet use nearly 30 percent less water than the government-mandated maximum of 2.5 gallons per minute. (Note that there isn’t a WaterSense label for showerheads, indicating that a product uses much less water than a conventional model, but the EPA is aiming to have one for qualified products in spring 2009.)

Both Croma showerheads offer normal, massage, and intense turbo spray settings. The Croma C 100 offers a traditional style is available in those finishes and polished nickel and oil-rubbed bronze. The Croma E 100 has a contemporary look and comes in chrome, brushed nickel, and polished brass. They’re available at bath and kitchen showrooms nationwide and cost $60 to $94.—Kimberly Janeway

Essential information: Before you shop, learn about the different types of showerheads and the factors that affect performance. And watch our video from the Kitchen/Bath Industry Show on the latest trends in the bathroom.