20-30% slope on mainlines

[sjdoyon]

Installed mainlines this summer (wet/dry vacuum) 2" and 1 1/2" mainlines with a 20-30% slop for over a mile distance down to the sugarhouse. Anyone have experience with this type of slope and what unusual issues have you run into?

[220 maple]

I try to keep my mains at 3 to 4% slope, tree gas is lighter than sap and creates turbulance in the lines, you probably won't have any problems due to the size of you lines

Mark 220 Maple