Installation tweaks to consider
The connection between the fan and the tube is one of the first areas where you may encounter wear-and-tear with the system.
Schuld says they double-folded some extra tubing (it was part of the packaging material) and placed this at the connection of the fan to make it stronger. They put the tubing over the top of that and fastened it with a strap.
Where and how the fans are mounted is also important. If the fans aren’t mounted onto the exterior wall, they end up re-circulating air rather than drawing in fresh air, Brotzman says. Be mindful of this during installation.
Nate Elzinga of Daybreak Dairy in Zeeland, Mich., learned the hard way just how important installation is.
“We didn’t know a lot about it when we did it, and we did it wrong,” he says. “We ended up not being able to run it when it was cold.”
They have since built a new barn with group housing and an automatic feeder, and despite the not-so-good results the first time around, they still included positive-pressure tubes in this barn.
“We put them in the new barn right from the get-go because we knew it was important,” Elzinga says. A few tweaks may be needed, but overall, he is pleased with the system’s performance.
“It does us a good service, especially through the winter.”