This is not a continuous trapping door once it s closed it s closed until you come and manually open it or reset it.
Guillotine trap door trigger.
Right outside of gate door.
Therefore it is extremely important that the trap be strategically baited to insure that most if not all of the pigs in a sounder have entered the trap.
I personally prefer the guillotine door as it generally has a bigger opening and it is positively closed with an active latch to prevent pigs from rooting.
Note handle at bottom to raise the gate.
The guillotine door raises up to create an opening into your trap and falls straight down when it s activated.
Lower right tripwire secured to trigger and to the far end of the trap near gate.
Photo courtesy of texas agrilife extension.
A dropwire secures the tire to the main wire.
Lower left 4 triggers front side l shows eyebolt and back side r shows hinge.
Guillotine or drop style doors are called single catch doors because once the trap has sprung that is the door has closed no more animals can enter the trap until it is manually reset.
Rooter lifting head gate on box trap.