mowin wrote:
wa8yxm wrote:
There should be no suction, You have a roof vent, it's job is to insure there is no suction. If there is suction something is obstructing the vent.
Ok. The vent IS NOT OBSTRUCTED. It's been checked. Twice. The vent is smaller then the discharge. Thus when the honey wagons pump is full throttle, the vent cannot complete.
Correct......
Vacuum (negative pressure) thru a 3" drain line vs atmospheric pressure thru a 1 1/2" vent line --------- VACUUM WINS!
Thus the REASON vacuum pump should be at idle (5hg or so) vs full throttle (22hg or more)