Stupid question: Wouldn’t white balls reflect more sunshine and work better?
I see what you did there!
One can see the truck has an open roof in your video. [ Through the doors there’s daylight. ]
Anyway the whole thing is very clever.
Yeah I noticed that. I imagine the manufacturer stores new balls in a silo; the truck drives under and they fill it like they do corn.
And the sequel: Black Balls Matter!
You didn’t read the whole thread, did you?
They didn’t even bother to read the entire OP!
What I find really weird about this is that I read in the 1970’s that you could not use ping pong balls to reduce evaporation because they spun in the wind, increasing evaporation by transporting a thin layer of water up to where it couldn’t mix with the colder water of the lake.
The 1970’s was pre-snopes. Was the idea that ping-pong balls had been tried and failed just an urban myth? Can you put shade balls on your pool?
The Armour Balls are 4 inches in diameter, so this probably makes a significant difference compared to a ping-pong ball. They are also a lot thicker walled.
As to white balls, they are probably viable - these balls are basically coloured with carbon black. Using titanium dioxide would make for UV resistant white balls. They would be essentially opaque, so they would get the anti-algae properties. TiO[sub]2[/sub] is about twice the price of carbon black per unit weight, and twice the density. So might about 4 times the price as carbon black. No idea about how bad the second order issues of using it might be.