Switched to a slower dredge pump speed on a muddy job in Baton Rouge and got cleaner material than I expected

I was working a lagoon cleanup outside Baton Rouge last month and the water was thick with silt. My usual habit is to run the pump wide open to move stuff fast, but I decided to drop the RPMs by about 15 percent just to see what happened. To my surprise, the solids content in the discharge actually went up by nearly 10 percent based on my bucket samples. The slower suction let the heavier material settle into the intake instead of churning everything into a cloud. Now I'm wondering if I've been wasting fuel and time by running full throttle on fine sediment jobs. Has anyone else tried adjusting pump speed based on material type or am I overthinking this?

3 comments

3 Comments

drew551d agoTop Commenter

@jasonf17 beat me to it and 10 percent more solids?? That just blew my mind.

jasonf171d ago

You see this all the time. People assume full speed equals maximum output. But it's like when you're pouring a beer. If you crack the tap wide open you just get a glass full of foam. Slow it down and you get a clean pour. Same with dredging. The material tells you what it needs. Half the battle is just learning to listen to the machine.

faithcampbell1d ago

That whole "pour a beer" comparison jasonf17 made just clicked for me. I've been running wide open on everything for years thinking I was getting the most out of it. But honestly, I've had so many jobs where the material just turned into a muddy soup and I couldn't figure out why. Now I'm sitting here kicking myself for all that wasted fuel and time. It really is like you said, the machine tells you what it needs if you actually pay attention. I'm definitely gonna try dropping the RPMs on my next fine sediment job and see if I finally get some clean results.