I collect with 100 buckets atop a hill on some tableland.
The buckets are on level ground, but I have to carry the sap down a hill after collecting.
I am not the landowner so tubing is not possible. Besides the evaporator is still 1000 yards away , across a ravine so we use the atv.

If I were to build a dump station. Essentially a bucket fitted with 300 feet of hose down a steep hill to my 55 gallon drums.
What diameter hose could I use to pour the sap down?
1/2"......???