Bidet Seats: More Efficient Than Toilet Paper

Bidets are those devices that spray water (and sometimes air) on your posterior. They are more hygienic than toilet paper, and save you money in the long run. In Japan, high-tech bidets called Washlets are now the most popular electronic equipment being sold — 60% of households have them installed. In Venezuela they are found in approximately 90% of households. …

The Best Shower Filters Of 2011

I just replaced my shower filters, so I thought I’d update my best shower filter review from earlier this year. Each update to the review generates a lot of useful comments. So I’m incorporating what I’ve learned from those comments into this latest review.

The Best Reverse Osmosis Water Filters 2010

Reverse osmosis for the home is a water purifying method in which tap water is forced through a semi-permeable membrane that prevents bacteria and minerals from passing through to produce a more pure form of drinking water. The choice of a water filtration system depends on if you’re looking to rid of a specific contaminant or if you’re generally looking …

The Most Efficient Public Swimming Pool In The U.S.

A community swimming pool called the Richmond Plunge has just opened in Richmond, California, and it may be the most efficient swimming pool in the country. The Richmond Plunge has many efficient features: it’s heated by solar collectors, it’s entirely chlorine-free, and the building is powered by solar panels on the roof. The Plunge is a historic pool — it …

Chlorine Alternatives For Efficient Swimming Pools

Cannonball! Jumping into a swimming pool is a classic way to beat the heat on a hot summer day. But clean pool water requires a combination of filtration, circulation, and sanitization. Chlorine has long been the most common tool for keeping pools free of bacteria and algae – but it has its drawbacks, and there are alternatives.

Green Roofs – Efficient Design Starts At The Top

Green roofs have seen a surge in popularity recently as sustainable building designs become more mainstream. Soil and plantings on a building’s rooftop can help manage water runoff, improve air quality, and reduce energy use by moderating indoor temperatures. They can also prolong the life of a building’s roof by protecting it from the wear and tear of wind, water, …

The Rainwater Pillow – Rain Barrel Meets Cistern

Utilizing rainwater runoff is a double bonus for homeowners, both in environmental and financial terms.  It reduces the amount of water consumed from the municipal system, and it lessens the strain on wastewater treatment facilities that must process water after it flows down the drain.  A rain barrel is great for small-scale applications like a flower garden, and now there …

Updates From The MetaEfficient Kitchen Labs

This summer I’ve been working on food-related optimization projects, here are some updates: I now have subscriptions with two local farmers (through a CSA or Community Support Agriculture). One farmer provides me with raw milk, raw butter and eggs, the other farmer provides vegetables and fruit. They both happen to deliver to same street in my neighborhood, so I ride my bike …

AeroGarden: Easy, Efficient Indoor Gardening

In 2004, MetaEfficient.com pre-reviewed the AeroGrow aeroponics growing system. That was before the system was released. A couple of years ago, you couldn’t cut on your TV without seeing an ad for AeroGrow indoor gardening systems. It isn’t as ubiquitously advertised now, but it hasn’t disappeared from the market. In fact, five years after its initial release, there are several …