Will personal firefighting devices help or hurt in future wildfires?
In a minute flat, the system meticulously jerked across the landscape, drenching the ravine in 50 gallons of water. The demonstration on a hot July afternoon left the blackened sticks below the property — once trees before the Palisades fire ripped through — dripping with chlorinated water.
The contraption is the brainchild of Golling and Arizona engineer Tony Robinson. After a TV interview where Golling discussed a cobbled-together version of the tech that he says saved his father's home from the Palisades fire, Robinson cold-called him, and Realize Safety was born.
Now, the two talk of ambitious visions where entire neighborhoods living amid California's rugged brush-covered landscapes band together to create a community defense network of automated firefighters.
Their system is the latest entrant in a growing group of often-expensive, high-tech sprinkler systems designed to protect homes in high fire hazard areas. But while a blue-ribbon commission after the January fires recommended L.A. adopt exterior sprinkler technology, some fire officials warn there's limited evidence that these elaborate and flashy systems work.
Instead, they say the systems distract from less-glamorous but proven measures to protect homes, such as brush clearance and multipaned windows, while encouraging residents to risk their lives by staying back during an evacuation to protect their homes.
'Good solutions don't pop up overnight,' said David Barrett, executive director of the Los Angeles Regional Fire Safe Council. 'There is no silver bullet.'
Especially for a vicious blaze such as the Palisades fire. Given the extreme weather conditions — winds over 80 mph, incredibly dry vegetation — there was very little firefighters, let alone home defense systems, could do, Barrett said.
'It doesn't matter what you've got in your pool,' he said. 'Nothing is going to stop an urban wildfire from progressing if it's wind-driven — sorry. That's the end.'
Asked whether the system saved his father's home, Golling did not mince words: 'Absolutely.'
After Golling got word of a fire developing in the Palisades on Jan. 7, he immediately thought of the gas pump and irrigation sprinkler system his father had bought just months before to protect his home in the Palisades Highlands. Golling rushed to his father's house and spent the next two days deploying the system throughout the neighborhood, putting out spot fires that threatened the development. Golling said firefighters encouraged him to keep up the work as they struggled to contain monster blazes one neighborhood over.
As the smoke settled, most of Golling's neighborhood remained standing.
But little data exist on the effectiveness of home defense sprinklers.
Wildfire researchers often use large datasets of destroyed and standing homes after devastating fires to compare the success of the various home hardening strategies they used. But scientists have yet to identify and analyze fires where sprinkler systems were widely used.
Some anecdotal evidence has suggested that these systems provide some protection. An analysis of the 2007 Ham Lake fire in Minnesota found that of 47 homes identified with functioning sprinkler systems, all but one survived. Meanwhile, only about 40% of the 48 homes without the systems remained standing after the fire.
Typical home defense sprinkler systems work by drawing water from utility systems, and using it to wet the exterior of a house and create — at least theoretically — another barrier from fire. Realize Safety's goal is to prevent the fire from even reaching the house by dousing nearby vegetation in water and creating a mist to dampen any embers that could ignite the home. To do it, they're tapping into an underutilized source of water: pools.
Barrett said that, without a doubt, firefighters could put pool water to better use than these systems. Firefighters, he said, already have all the equipment they need to utilize pool water, and all residents have to do is install a clear sign out front letting firefighters know they have a pool.
But as Golling looked at the view of the Palisades from his father's backyard in early July, he counted eight destroyed homes with still-full pools.
'We think — that had they had a system in place like the one we're talking about — they could have saved their homes,' Golling said.
Utility water sources are not designed to handle large-scale urban fires. During the Palisades fire, the chief engineer for the city's water utility told The Times that the system saw four times the normal water demand for 15 hours straight.
It's in part why, when an independent 20-member Blue Ribbon Commission on Climate Action and Fire-Safe Recovery recently issued dozens of recommendations for rebuilding and recovery, it called for prioritizing additional water storage capacity in neighborhoods and encouraging the development of standards for and the installation of systems that draw on water stored in pools or cisterns, with external sprinklers to douse homes.
Using a 20,000-gallon pool, Realize Safety's system can run for over six hours straight. And unlike many traditional water defense sprinklers, it is not dependent on the house having electricity and access to utility water systems.
Reliability is paramount for Robinson, who has spent much of his engineering career working on airplanes and satellites — where failure is synonymous with catastrophe.
The same is true for wildfire defense. In the Ham Lake fire, the researchers also counted nine residences where home defense sprinklers failed. Eight of them burned.
In the quest for reliability, Golling and Robinson have made significant improvements on the unwieldy system Golling used in January (where, after some time, the generator cart rattled itself straight into the pool it was drawing water from). With a sturdy generator cart and sprinklers that are firmly anchored into the ground, the two are confident that residents can trust it long after they've evacuated.
But Barrett credits success stories such as Golling's not to specific technology, but instead to the dangerous practice of ignoring an evacuation order to protect a house. He worries systems such as Realize Safety's — that essentially give residents all the tools they need to try their hand at firefighting instead of evacuating — could encourage more people to stay behind, as Golling did.
'The problem with that is people then stay behind putting their lives and the lives of firefighters at risk, when they're not trained in firefighting,' he said.
A comprehensive 2019 study from fire researcher Alexandra Syphard found that, in previous Southern California wildfires, a civilian staying behind to protect a house reduced the chance of a home burning by 32% — more than every other factor studied, including defensible space, concrete roofs and even the presence of the fire department at the property. (The study did not evaluate the effectiveness of sprinkler systems, which were not widely used in the fires analyzed.)
However, fire officials across the state — in no unclear terms — strongly discourage this practice. It endangers human life, and when a manageable fire fight suddenly becomes unmanageable for a homeowner, rescue efforts can redirect essential resources that are desperately needed elsewhere.
Some fire safety advocates also worry flashy and unproven tech could distract from well-tested home-hardening methods, such as clearing flammable debris from the yard and roof.
Barrett recalled visiting a house about a year ago to inspect the resident's home-hardening efforts and provide feedback.
'The person had spent $50,000 on a sprinkler system, but he had overgrown branches hanging onto his roof and the rain gutters were all full of needles,' he said. Barrett's blunt personal assessment: 'This house is going to burn down."
"Chopping those branches and clearing the needles out would have cost $1,000 or less,' he said.
Golling and Robinson say they're focused on providing the cheapest, most reliable tech they can. They see their home defenders as another, relatively affordable, tool in the arsenal to increase the odds their customers' homes survive a fire.
A fully operational, autonomous system starts at $3,450, which Golling said is cheaper than what he spends on defensible-space lawn maintenance in some years.
"We did the brush clearance. We have the water pump. We're going to do the ember-resistant vents and home hardening," Golling said. "You've got to really do it all."
Times staff writer Ian James contributed to this report.
This story originally appeared in Los Angeles Times.
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