Hummingbird Swarm

I make my own hummingbird food, which must extremely delight the hummingbirds. Because, every year the swarm of hummingbirds increase in numbers. Maybe I should start selling it.
The only difference in the food I make is the water. I hired a water quality expert to come to my home. He installed three separate systems which fixes every pollutant and chemical imbalance. The result is great tasting water. But, apparently these birds notice it even more.
Attempting to reduce clashes between these territorial feeders, I now have four feeders. Yes! Many more are swarming than you can see in this video! While recording this video, two more swarms were beside and behind me with another at the front of my home.