Quote Originally Posted by marman View Post
I changed mine to 7 min yesterday. They were at 9 min. 7 min may be a little too low. I didn't see water running out the vent. 7:30 may be closer if you want them to be absolutely full. I did peak at them at they looked full though.
I guess the Sumo 900s don't have an air release of any kind? I filled mine up and after about 6ish minutes they looked like the were ready to burst if I let them go any longer. I don't have much experience with these but it seemed like the top portion had some air in it and not water.