Michael, check out this video. Yes, liquids can run uphill--capillary action, siphoning. This tap was installed with at least a 10 degree angle. It's back-dripping right out of the bucket. I don't like to run anyone's product down, but this spout is a poor design. Yes, it has some good qualities: stainless steel, easily sanitized, holds a bucket well; good length; holds in tree well. You can "fix" the back-dripping problem by adding a wire tie or crimping the end in a vise, but why should I have to?
https://youtu.be/67UDsvBcvzw
You will note that the cast aluminum Leader spouts with the "shark fin" have a prominent "beard" on the end to promote dripping into the bucket. The Leader spout also has its issues: shark fin cuts through plastic buckets; doesn't hold in the tree as well as some spouts; short. I've tested some stainless Next Gen spouts and they seem to work well. They drip well even if installed almost level. I do wonder if over time the vertical tab that holds the bucket might cut through a plastic bucket.
I also wonder if these stainless spouts without much taper inside the tap hole might reduce the flow of sap. Comments, anyone?
Marc
Last edited by maple marc; 03-28-2016 at 06:05 AM.
Reason: add video
Central Ohio
Leader WSE 2x6
Old metal corn crib converted to "The Shack"
Smoky Lake 6 gallon water jacket canner
Daryl 5" filter press with air pump
Deer Run 125 RO
2023: 140 taps, buckets, 32 gallons
2019: 100 taps, buckets, 45 gallons
2018: 100 taps, buckets, 31 gallons
2017: 100 taps, buckets, 15 gallons
2015: 100 taps, buckets, 34 gallons
2014: 100 taps, buckets, 30 gallons
2013: 100 taps, buckets, 52 gallons