Dry lateral but the trees are running.

[rayjavu]

I have 4 laterals running down to my mainline. 3 are running but the fourth is dry. In the fourth one there is no sap in the drops but if I pull a spout, the sap runs out of the tap hole. What the heck is going on?

[Daveg]

Sounds like a clog at the lowest Tee on the affected lateral.

[Bricklayer]

Had the exact same thing happen yesterday. Used the 2 hand tool and cut out the Tee and put a new one in. Was clogged with a wood chip.