Even the Internet’s Favourite Pool Man Has No Clue How to Repair the Reflecting Pool – Mother Jones

A National Park Service employee manipulates algae within the Lincoln Memorial Reflecting Pool, June 14, 2026. Ken Cedeno/AFP/Getty

This story was initially revealed by Wired and is reproduced right here as a part of the Climate Desk collaboration.

Steve Goodale isn’t used to consideration like this. It’s not that he’s unfamiliar with being on digicam: His YouTube Channel, Swimming Pool Steve, has amassed almost 91,000 subscribers masking matters like how to bond concrete and clean a used hot tub.

But the saga of the Lincoln Memorial Reflecting Pool, which an algal bloom turned green following a renovation that President Donald Trump’s administration claimed would make the pool “American flag blue” in time for the US’s 250th birthday celebrations, has left folks trying to find solutions about what the heck is occurring.

The thriller has solely deepened as chunks of the newly put in lining have appeared to interrupt off and Trump has mentioned the pool shall be drained whereas, with out proof, blaming vandals for the issues. Add in US Park Police arresting folks for touching the water prefer it’s some sort of biohazard, and that’s made Goodale, an award-winning pool expert, one of the crucial in-demand sources for anybody attempting to determine what’s taking place to the enduring monument.

Pools are in Goodale’s blood: He discovered the methods of the commerce from his Uncle Joe and refers to swimming pools as “a family business.” I referred to as him as much as go over a few of our most burning pool questions. This interview has been flippantly edited for brevity and readability.

Are you sick of speaking about all this but?

This is just like the Simpsons episode the place the satan force-feeds doughnuts to Homer. “So, you like talking about pools, do you?”

We heard you want speaking about swimming pools, so we’re going to provide you swimming pools 24/7. All the time.

I’ve been speaking about them endlessly. It’s simply now all people is listening.

You’ve gotten a variety of reporters calling you and asking, What precisely is unsuitable with the Lincoln Memorial pool? But from watching your movies, it sounds prefer it’s onerous to say there’s one definitive factor unsuitable with it.

There’s not sufficient data when it comes to photos, movies, water chemistry values. A pure pond, an open-air, clear-water setting—that’s what this factor is. There are so many shifting components right here. It’s the construction, it’s the water chemistry, it’s filtration. There’s a lot stuff that has to work along with one another.

I’ve been saying for many years now, I feel swimming swimming pools are the origin of the time period “doesn’t hold water.” If you don’t do each a part of your job correctly, it’s very straightforward to see that there’s one thing going unsuitable.

Experts like you’ll be able to see 101 methods a venture like this might fail, even with a really gifted, skilled crew doing the renovation.

Pools are mercilessly difficult—and I’m speaking about little ones. This is actually monumental in dimension. It would take a grasp class in technical execution to have the ability to work on this factor in a reliable capability. But you don’t want Swimming Pool Steve to let you know that if you see what seems to be the inside floor peeling up and floating in chunks. That’s an “oh, crap” second.

I’ve seen some hypothesis that the hydrogen peroxide is likely to be the reason for the underside of the pool peeling. But you made a video concerning the lining, saying that it is likely to be extra advanced than simply that.

There is benefit to this line of thought. These inside surfaces, they’re very chemically resistant, however they’re not infinitely chemically resistant. It would come all the way down to what’s getting used and what concentrations of it are getting used—all these unanswered questions.

But with a membrane system like this, there’s a variety of technical factors it’s a must to nail throughout set up. You must account for ambient situations like rain, solar, humidity, moisture management in your substrate, thickness, evenness, and chemical compatibility. There are so many issues that may go unsuitable with that course of. If the fabric hasn’t bonded to the substrate for any variety of causes, then finally your entire system will fail.

Now the president is claiming that it’s vandalism.

I can’t actually get my head across the mechanism of vandalism that would trigger this sort of injury. In phrases of images and movies, it doesn’t look good, nevertheless it was pretty localized stuff. I haven’t seen something that exhibits the 250-foot gash. At this level, I’m positive you’ll be able to perceive, I, greater than anyone, have questions too.

The Department of Interior retains saying, “We’ve got the nanobubblers on, that should fix it.”

Nanobubbler expertise is an ozone injection system—it primarily provides oxygen to the water. In principle, it’s used as a suppression system to kill algae instantly, nevertheless it additionally has a secondary perform of constructing an oxygen-rich setting within the water, which controls the discharge of phosphorus from the sediment layer on the backside of the pool, the first nutrient supply for algae.

Will sediment on the backside of the pool have an effect on the blue coloration? Or is it scattered too thinly to have an effect on it?

It definitely begins skinny, nevertheless it has the potential to be a heavier layer. It actually comes all the way down to the standard of the supply water getting used and the design of the filtration system itself.

Water from the Tidal Basin is often pumped instantly into the pool, however when there’s a variety of algae within the basin, they change to municipal ingesting water. The administration hasn’t answered our questions on what the supply of the water within the pool is true now.

I’ve additionally been looking for solutions to that. But the water that’s within the pool is admittedly what issues right here. Now that it’s within the pool, what’s the phosphate degree? What’s the nitrate degree? Those could be good issues to know.

So simply seize a bit bottle of water to check?

Well, I’ve seen on the information that perhaps you’ll be able to’t even get close to it anymore. But in principle, sure, if this had been my swimming pool, I’d stroll proper as much as it, dunk my little bottle into it and take a pattern. I’d take a look at for phosphates, and it will inform me an terrible lot concerning the vitamins accessible for algae to develop.

In the large image, how a lot of a large number is that this to wash up? How a lot might it price taxpayers?

I can’t converse to price or funds points. But I can let you know that draining a 6.5-million-gallon physique of water is definitely a substantial factor to do. In phrases of what it’s going to take to repair it, what actually issues at this level is, how a lot injury are we speaking about right here? Is it a localized space that may be uncovered and repaired? Or is that this a sign that there’s some type of systemic concern?

You have to take a look at it as a system as an entire.