Cavitation on 100,000 GPM pump - photo

Cavitation on 100,000 GPM pump.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...p_fullsize.jpg

https://diqn32j8nouaz.cloudfront.net...large_pump.jpg


Previously:

https://www.homemadetools.net/forum/...200#post134729
https://www.homemadetools.net/forum/...252#post130765
https://www.homemadetools.net/forum/...463#post131853
https://www.homemadetools.net/forum/...269#post130848

I wonder if that is all from air bubbles, or other debris in the water, sand, gravel, fish, etc.. at 100,000 GPM would be difficult to get all only water.