To get an idea of the scope of the problem:
See the problems that have plagued the Lincoln Memorial pool for decades and why President Trump’s repairs might not fix them.
www.nytimes.com
Twelve-inch pipes under the surrounding parkland are responsible for moving large volumes of water from the pool to the treatment plant and back again.
When it works, that system is supposed to filter all of the pool’s four million gallons every three days or so.
But these pipes often break and leak. The Park Service has said their plastic walls fail under pressure from the surrounding soil.
“It’s almost impossible to maintain the water level that is required to make the pool reflective,” said Kym Hall, a former National Capital Area director for the National Park Service. “It’s like pouring water into a colander.”
When the pipes break, they have to be shut off, and the pool is disconnected from its filtration system. It is left stagnant, sometimes for weeks.
In Mr. Trump’s first term, the Park Service said the only solution was to replace thousands of feet of pipe. But it has still not done so. The Trump administration has said it plans to have that work begin in the fall, but has declined to give details.
The work done so far, apart from the caulking. seems to be cosmetic. But it is very pretty and is reflecting beautifully.