Overheard a new guy talking about suction line pressure on the dock

I was grabbing a coffee at the yard in Mobile yesterday and heard a young hand telling his buddy he runs his suction line at 80 psi no matter what. I almost choked. I've been on cutterheads for fifteen years, and that's a sure way to plug a line or wear out a pump fast. The takeaway for me was how easy it is to pick up bad habits if no one tells you different. On our last job in the channel, we were moving from soft mud to some old clay, and I had to drop pressure from 65 down to 45 just to keep the flow right. It made me think we should do more of these simple 'here's why' talks during safety meetings, not just the rules. Anyone have a good way they explain line pressure to new crew without making them feel dumb?

2 comments

2 Comments

nina_hall9d ago

Just show them the pump curve chart.

paulperry9d ago

Oh man, @nina_hall, I wish it were that simple. In my experience, a pump curve alone just makes their eyes glaze over. You gotta connect it to their actual problem. Like, if they're complaining about low pressure at a specific faucet, you have to walk them through how the system head loss plot crosses the pump curve. The chart is the proof, but you need to build the story first.