As West Grows, Water Use Declines Thanks To Better Toilets

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Throughout the western U.S., water conservation is in the toilet.

And that’s a good thing.

Since the 1990s, a strange phenomenon has played out in arid western urban areas. Populations are booming while overall water use is staying the same or going down. The trend is clear in Denver, Albuquerque, N.M., Las Vegas, San Diego and Phoenix: Cities are growing and using less water in the process.

It’s impossible to give credit to one single solution, but one could make a strong case that the MVP award for water conservation efforts should go to the modern toilet.

The toilet is the single largest user of water in the home. It uses more than the washing machine, the dishwasher, the shower or the kitchen faucet. About a quarter of all water that enters a home will flow through the toilet according to a 2016 study. Each day the average toilet will use about 33 gallons of water.

That might sound like a lot, but it’s a big improvement. In 1999 the average toilet guzzled more than 45 gallons of water daily.

The story of how the toilet became the unsung hero of water conservation includes an act of Congress, some elbow grease and logs of miso paste.

Out with the old

Theresa MacFarland lives in a historic two-story house in Longmont, Colo., with her husband and two kids. Built in 1928, their home has all the vintage touches: hardwood floors, big windows, wood detailing and one really old toilet.

A little stamp on the bowl says it was built in the 1950s. MacFarland points it out to her 4-year-old daughter Althea.

“That toilet has been there longer than daddy and I have been alive,” she says. “Probably longer than grandma and grandpa have been alive.”

As aging toilets are wont to do, it started acting up. So MacFarland contacted Resource Central, a Boulder-based conservation group and asked for help installing a new, more water-friendly model. Neka Sunlin showed up with the latest in toilet technology. Sunlin oversees the group’s toilet replacement program, Flush for the Future.

“We guesstimate this one is using about five gallons a flush,” she says about the old toilet. “The new one uses less than one.”

In Sunlin’s years with Resource Central, this is the oldest toilet she’s condemned to the local recycling center. By swapping it out, the McFarland family could see a dip in their water bill, she says.

A fast-growing alternative to high-priced Boulder, the city of Longmont has an interest in what happens in the MacFarland family bathroom. Water saved from their home is water that can be put to use somewhere else.

That’s why the city, along with a handful of other water providers on Colorado’s Front Range, subsidizes the cost of high-efficiency toilets. MacFarland is paying $175 for the new toilet, the cost of installation and removal of the old one. Her new model retails for $160.

Sunlin says it’s an easy switch with a big pay off. With other conservation programs you first have to convince people to use less water.

“But a toilet is a toilet,” she says, “and it’s no behavior change whatsoever. You literally just save water with every flush.”

In the last three years Resource Central has upgraded 2,000 toilets, which calculates out to 500 million gallons of water saved when looking at the average lifespan of the toilet of 30 years.

“Most people don’t realize that if their toilet is more than 10 or 15 years old, replacing their toilet or upgrading their toilet is one of the most impactful ways they can save water,” says Neal Lurie, president of Resource Central.

The group receives funding from the Walton Family Foundation, which also provides support for public radio member station KUNC’s water reporting.

“It can save between 200 and 300,000 gallons of water over the life of that toilet,” he says.

In with the new

The road to high-efficiency toilets began back in 1992. The concern was less about water scarcity in the West and more about overwhelmed sewage systems on the East Coast.

Congress was feeling pressure to pass national standards for water use and came up with the Energy Policy Act, a law that spawned a generation of low-flow fixtures.

For the plumbing industry, it was a huge deal.

“Absolutely, it was an extremely watershed moment, no pun intended,” says Pete DeMarco with the International Association of Plumbing and Mechanical Officials.

The law mandated that toilets flush using 1.6 gallons of water or less. Throughout the 1990s, low-flush toilets flooded the market. But the results were not always satisfactory.

DeMarco says users hated the new models. They complained that their “new and improved” toilets performed worse than the old ones, unable to finish the job in a single flush.

“There were some poor-performing products back in the mid-90s. I think the regulation caught some manufacturers off guard,” he says.

In many cases, DeMarco says, manufacturers had simply reduced the amount of water a toilet used without making significant changes to the inner workings. A lower flow just couldn’t cut it.

Frustrated customers sent toilet-makers back to the drawing board and manufacturers came up with a test to demonstrate flushing effectiveness for new toilets. The test came from a company called Maximum Performance. Using logs of miso paste in the toilets, the test allowed manufacturers to demonstrate that their new low-flow toilets could actually evacuate the bowl with one flush.

Indoor water use drops

DeMarco says toilets can’t take all the credit, but this one innovation is a big reason why cities have been able to grow and still keep their water use in check. Indoor use dropped 22 percent nationwide between 1999 and 2016, much of that due to swapping out old fixtures.

In recent years some states with water scarcity problems — like Colorado and California — have passed even tighter regulations on how much water toilets can use.

“So you basically have these high-efficiency toilets now as a matter of course. You cannot go out in a store in Colorado, in California, and buy an old toilet,” says Drew Beckwith, a water policy expert who works in suburban Denver.

Beckwith says conservationists have been a victim of their own success. With national standards in place and active replacement programs throughout the country, there’s not much more they can do to limit water use inside homes. All new residential developments are putting in high-efficiency toilets because there’s no other option on the market. And when old models need replacing in existing homes, the only available option is a high-efficiency toilet.

“We’ve sort of done our business with respect to toilets,” Beckwith says. “And it’s time to, you know, maybe get off the pot and move on to outdoor water use which is more the focus of urban water efficiency today.”

Fixing the flush

Back at the MacFarland home, the toilet transition is complete. The nearly 70-year-old toilet is loaded on a van bound for the recycling plant. The brand new high-efficiency toilet is hooked up and the water is flowing.

“This is going to be a huge improvement,” Theresa MacFarland says. “And it feels like with very little effort, which I’m very excited about.”

Even though some conservationists say much of the indoor water use fruit has been plucked, a 2017 Alliance for Water Efficiency study found that more than 13 million non-efficient toilets — those that flush more than 1.6 gallons — remain in five states, including those with the toughest restrictions: California and Colorado.

A nationwide push to rid the country of old toilets could have a significant effect.

If all toilets were high-efficiency, indoor water use could drop an additional 35 percent to below 40 gallons per person per day, the study projected.

MacFarland says she loves the character and charm of her historic home, and she’s focused on making it environmentally-friendly. But it takes time, energy and money to make it happen.

“We’ve been slowly trying to figure out ways to have just less water usage in this home,” she says. “Knowing in Colorado it’s such a precious resource, and we want our kids to grow up here and also recognize what comes with living in Colorado and trying to do our part.”

The Resource Central technicians ask for a practice flush to make sure it’s working right before they depart. The honor of the first flush goes to McFarland’s daughter Althea.

“Check it out. There’s this new button,” MacFarland says as she motions to her daughter. “Kind of the same as the other one, except inside the tank this is so different than the other one. This one just uses a little bit of water.”

“And it’s cleaner,” Althea says.

“And it’s cleaner, way cleaner,” MacFarland says.

This story is part of a collaborative series from the Colorado River Reporting Project at KUNC and Elemental: Covering Sustainability, a new multimedia collaboration between public radio and TV stations in the west.

Copyright 2018 KUNC. To see more, visit KUNC.


During hurricanes like Florence, many people find themselves trapped and needing rescue. This week, while he visited eastern North Carolina, President Trump thanked the first responders who sometimes risk their own lives to help.


PRESIDENT DONALD TRUMP: Sheriffs, police officers, firefighters, our great Cajun Navy – they’re all over the place.

SIMON: That last group, the Cajun Navy, is one of several volunteer organizations who’ve stepped in during recent storms to try to fill what they see as a gap in the services available from government agencies. As NPR’s Sarah McCammon reports, they have a complicated relationship with the official first responders.

SARAH MCCAMMON, BYLINE: When we met John Gallagher on a cloudy morning early this week, he’d been dozing off in the front of his truck parked on the street in Fayetteville, N.C.’s quiet, boarded up downtown. The city was waiting for the Cape Fear River to finish rising and Gallagher, a contractor from Charlotte, was waiting for a call for help.

JOHN GALLAGHER: We’ve just been taking dispatch calls for swift water rescues, rescuing animals, missing persons.

MCCAMMON: Gallagher is with the Cajun Navy, a loosely organized group – or really, several groups – that have sprung up in recent years in response to hurricanes like Harvey and now Florence. He says they work independently from government agencies like FEMA or the Coast Guard or local police and fire departments.

GALLAGHER: Totally separate – it is a true volunteer effort.

MCCAMMON: Across town at a shopping mall, several volunteer rescue groups had set up an ad hoc staging center for their boats, pickup trucks and trailers.

UNIDENTIFIED PERSON: They have, like, all these emergency vehicles set up and stuff.

MCCAMMON: Sherry Fox and some friends who had driven up from near the South Carolina border were listening to dispatch calls on an unofficial social media app, waiting to be sent out on a rescue.

Several emergency managers reached by NPR said volunteers should go through official channels, both to make sure that they are safe and so that calls for help don’t fall through the cracks. But Fox, who says she has training in first aid and experience on the water, says the government agencies can’t do everything.

SHERRY FOX: Because there’s not enough first responders with this massive damage and this – there’s no way, nobody has this many boats.

MCCAMMON: That’s a common sentiment among these volunteers. Taylor Fontenot, a 29-year-old roofing contractor from Sugarland, Texas, says he has helped save hundreds of people since Hurricane Harvey last year. He thinks volunteers can be more efficient than the government.

TAYLOR FONTENOT: I spent the four hours the first night of the storm during – in the hurricane, pulling people out of attics, seven to 12-member families out of attics. I did 153 in three hours.

MCCAMMON: Fontenot was standing barefoot in an ad hoc command center set up in the mall food court with a handful of laptops and other gear. He started with the Cajun Navy, and now he’s setting up a group of his own. North Carolina is an open-carry state, and outside, several young men were milling around with pistols on their hips, waiting for instructions. Fontenot says volunteers need protection in tense situations, but he says he’s seen that go too far.

FONTENOT: We had that happen here. They came here on Texas plates. They’re open carrying, carrying around assault rifles for no reason.

MCCAMMON: Emergency responders say they sometimes work with good Samaritans but worry that volunteers are jumping into these situations without proper training. Coast Guard spokeswoman Amanda Faulkner says agencies like hers have plenty of boats and know when it’s safe to take them out on the water.

AMANDA FAULKNER: At what point do you become a liability? And when do you create an unsafe situation where you are putting your life at risk and a first responder has to come out and help you?

MCCAMMON: John Gallagher, the contractor from Charlotte, says, of course, the Cajun Navy is doing dangerous things. That’s the point.

GALLAGHER: Because we’re not under command, we don’t have to ask, we don’t have to wait. We just go. And even when it’s too dangerous, we still go.

MCCAMMON: Despite the president’s praise for the Cajun Navy, a spokesperson with FEMA says the agency strongly discourages people from showing up to disasters on their own.

Sarah McCammon, NPR News, Fayetteville, N.C. Transcript provided by NPR, Copyright NPR.