Boumatic 4155L...know anything about them

[Maplewalnut]

Anyone know anything about this vacuum pump? Apparently they are in use at a dairy farm but for sale. About how many cfm are they? Anyone use these for sap?

Thanks Mike

[HazensNotchSugarShack]

Mike you still lookink for info I may be able to help a little. Check my thread on Bou-matic vac pump. Rick