Future Hatchery Staff?
This semester, the students had a problem. The pump in one of their two recirculating systems was not filling the water filtration system and they weren’t able to rear fish. They believed they needed a bigger pump and called FWS looking for advice on pump suppliers. After a few questions, it was clear they hadn’t calculated their needed pump size, but were just going to buy 'something bigger'. Kris Johnson, Fisheries Facility and Asset Maintenance Coordinator, was willing to help the students understand that they needed to use some basic engineering principles to determine their pump size.
Under Kris' instruction, the students drew design schematics for their tank system. They measured their tanks, pipes, pipe heights and pump location. They learned about head pressure and determining friction in their pipes. True to the nature of the school’s philosophy we did not immediately provide the students with an answer. They spent a couple of days working with the high school math teacher and the engineering formulas provided by Kris to determine their needed pump size. Kris also used the students’ measurements to solve the problem; and then the students compared their answer to his. They were very close! A new submersible pump was ordered and the students are currently working to bring that system online.
"It was a lot more math than I thought it was going to be, but I learned a lot. It was great to have the engineer from Fish & Wildlife Service come to school to help us. Hopefully we can start growing fish in these tanks soon" said Michael McGimsey.
Last updated: July 21, 2014