I was reading about the pool today. About how it was built on a marsh and sunk. Concreted in the Reagan years, and near totally rebuilt under Obama. And I spotted something I have not seen mentioned.
It has always leaked. So it had to be topped up. Obama fixed that, and with no water being topped up (apart from evaporation), the algae bloomed. Of course. But the Obama rebuild did include a water recirculating system, so they knew it would be an issue.
The Obama rebuild did reduce its empty and scrub from twice a year to once a year.
However, it still has no filter system to remove the algae. A big UV system would do. That is what it needs. And the rule of thumb for aquariums ( I keep fish), is that the filtration cycles 4 x the volume of water per hour. And that is a big pool, with a lot of organics going in (goose poo).
Trump done totally the wrong thing. It either needs a massive filter, or a massive leak that means the water is always being replaced. Paint will do nowt,