Posted 9/24/2023 19:51 (#10414793 - in reply to #10414330) Subject: RE: How is this bin leaking?
Kankakee Il
By chance do you have van axial fans running backwards. I have seen this before but it was set up to suck air out rather than positive airflow pushing in. Van axial running backwards, and a poor caulk job will do exactly what you are showing.