Is it possible that the balloon for the ORBERA balloon surgery can pop? Also can you exercise (push ups/sit ups)?

Excellent question. The Orbera intragastric balloon is made of extremely durable silicone and it is very unusual for it to develop a leak or to deflate. A review of 68 studies including a total of 8500 patients showed that balloon deflation occurs in approximately 0.3% of patients (meaning 3 out of every 1000), which is incredibly rare. If this were to occur, you might notice that you suddenly aren't as "full," or you could potentially develop symptoms of a blockage if the balloon tried to exit your stomach. Again, this is extraordinarily rare. An X-ray would tell us if this happened, at which point the balloon would be removed. You will not harm the balloon by doing pushups or sit-ups. We encourage all forms of exercise. 

Thank you for your question. While it is possible for the balloon to pop, it is highly unlikely. Exercising is accepted but I would not recommend push ups or sit ups or any exercise that causes intra-abdominal pressure to increase as it could cause symptoms. You can do brisk walking ot biking which due to its aerobic work will aid in weight loss

It is very difficult to actually pop the balloon, but it is possible to develop a leak. The chance of this occurring is probably about 1% or less. 
Yes, you can absolutely exercise in any way you like. We highly recommend it. :)
Take care, Dr. Misra

The Ballon is saline filled and due to the strong shelling, there is a very small chance of popping, unless maybe in a case of traumatic injury.
There is report of leaking that is also very uncommon, but can be diagnosed by coloring the Saline with Methelene Blue which will result in colored urine in case that there is a leak in the Balloon...
Regular exercise will not effect the Balloon. :))