Barotronics - Sequence Skip Airlock

The first of a series of circuits I previously made but didn't take the time to properly release, until now. :)

The Sequence Skip Airlock is the simplest to use airlock with decent comfort features. On pressing any of the buttons, both doors close and the airlock starts it's draining or flooding sequence. Once the airlock is fully drained or flooded, the inside or outside door will open respectively. If you're in a hurry - whether it's being chased by a tresher or the clown with the funny hammer - you can press the button again after a short time to skip the sequence, opening the door before the sequence is complete. This may let some water in, but that's what we've got bilge pumps for right?

I hope this will be of use to some of you!

-WorkingJoe

Note: If your airlock doesn't cycle properly (for instance it drains, but then opens once it's filled letting water in again) try switching around the doors. The circuit isn't entirely symmetrical.