Built SAP ladders this year...they work!
First time I ever built or used sap ladders. The largest is 16' tall on the final stage heading to the tank room at the sugar house. Works great and I have video from last week on my face book. Can't believe I did not try this sooner and save on tanks and collection. All 300+ taps in this sugar bush now come right to the tank room in the sugar house. In the past, I had two tanks and two sap suckers out in the bush that had to be pumped up to the sugar house.
Now just need to thaw out again...