...do you find you get highs? He has had tslim for about a week. Ds was low on insulin--he said 10-20 units--when he changed his site. he started to rise around 2pm, site was changed at 4:30 ish, still climbing, dinner with a shot (for correction as well as the meal) near 5:00. He was 400 at that point. It was site change day, and to my knowledge the only alarm he got was site change reminder, no occlusions, etc. I suspect the new site may be bad also, but we are waiting before pulling it. If it is good, he may have stacked insulin some (not sure which corrections came from which site) but banking on some resistance from the high, hoping he doesn't come down too far. He has left the house with dh now, so I don't know what is happening (don't have share devices yet), but I assume he has started to come down. I don't know why he went high in the first place. I'm wondering if anyone else has experienced the pump not delivering normally when it gets low on insulin. I don't remember him being high before site changes before, but we haven't had many. I don't think it is just an older site problem, as he has gone 4 days many times with no problems, although it is possible. Just trying to troubleshoot, coming up with possible explanations. Any other thoughts? Thanks!