The TG2 in the Oly housing should survive just fine if you have a flood at 140' down. (NOTE very, very rare to see issues with this housing) The main issue with the TG2 is as it goes deeper is not the risk of flooding the camera, it is the pressure on the buttons stop it from working at depth. We had a TG sit in a fish tank for months, and it worked just fine. So short of taking the camera & housing down to 140', opening the housing and taking the camera out, the camera should do fine.