Interesting. I wish the camera guy wasn't so enthralled with the water coming out, but had given us a look to see where it was flowing into. Weird noise at the doors when they closed.
Clive Ellis I find these large water projects to be creepy, as well as fascinating. If I were there in real life next to the outflow, & heard those noises, I would get the h... out of there!
bertThugh2 Its the water level descending in the pipes after the pump stops. The descending water sucks air through the closed flaps which causes that sound.
@@Alexander470815 Should be caused by the air going in the vent on the top of the discharge pipe. At least they can get to theirs when they aren't pumping. Some of ours were up to 6' up from the water level.
bearbon2 Perhaps, but maybe this is a zero head system with careful piping design to avoid restrictions? You can get a helluva lot of water flow with little horsepower, if you be careful to use oversized pipes, keep the pipes as straight as possible, and use good engineering to reduce pipe internal friction losses. You can move a lot of water if you don't have to lift it. Once you start adding head of lift to these type of pumps, the flow will drop drastically very fast, because this type of design can't handle pressure. But they can move volume very efficiently.
Not really a lot. Ones I ran/maintained were 150CFS and were driven first by Cummins 8.3L Diesels and later after we destroyed them, Cats. The Cummins weren't rated for the HP needed to be able to be run 23.5/7 and would eat the valves at around 2000 hours of use. With the damage being pretty high. The Cummins were 8 hour a day engines while the Cats were 24 hour a day rated. So we had 4 at 150CFS and one electric that pumped 125CFS with a 150HP electric motor. They should be 4' diameter pumps with the 200 HP motors and would put out 150CFS.
