Still studying my new housing. Can anyone help me understand what this blue lever/button that con-rods to the back of the housing and presses on the small microswitch adjacent the flood protection switch?

I know the microswitch turns off the flood alarm, but what's going on with the blue button?

Is it so you can quickly dump the port if you have a flood (and you're out of the water), keep the camera facing downwards and mute the alarm without having to fully disassemble the housing?

Edited October 24Oct 24 by foetusmachine

It is only made to rearm the vacuum sensor in surface in the case change the lens by opening only the front port. In that case, you don't need to remove the back of the housing turn on/off the vacuum sensor, you only need to press the blue button on the front and do again the vacuum with the pump until green light. The blue button actually press the switch at the back of the housing.

Edited October 24Oct 24 by eocean-eu

Thank you.