Since detecting leaks can be cumbersome, it would be nice to change your pump to one that can provide negative or positive pressure for detecting air bubbles in a tub.
This is a clever idea. We would also need to retain the end-caps better so that the positive pressure doesn’t push them off. We are working on a solution for that across our whole watertight enclosure line, so I think this would be a practical thing to do eventually.
Sorry if this is a bit vague
Perhaps this could be integrated with a leak detection system similar to the underwater camera housings
I can’t remember what UW housing system does it (the vague part) but I am sure there is one where you turn on the circuit and then preform a negative pressure test prior to the dive and once passed you can also put a slight positive pressure into the housing and this positive pressure is monitored for decay (temperature compensated) and a warning is given if the pressure falls below a level similar to the negative pressure decay warnings in this, this and this