# Omnipod questions: managing temp basal, and insulin tank reserve

**URL:** <https://forum.fudiabetes.org/t/omnipod-questions-managing-temp-basal-and-insulin-tank-reserve/5421>\
**Category:** Pump\
**Tags:** omnipod\
**Created:** [November 6, 2018, 1:47pm UTC](https://forum.fudiabetes.org/t/omnipod-questions-managing-temp-basal-and-insulin-tank-reserve/5421 "2018-11-06T13:47:44Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\
**Post date:** [November 6, 2018, 3:58pm UTC](https://forum.fudiabetes.org/t/omnipod-questions-managing-temp-basal-and-insulin-tank-reserve/5421/7 "2018-11-06T15:58:45Z")

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Yeah, that was a difficult one to figure out. The pod display when you get below 5.0 says “low”. But I tested it several times and it was actually _about_ 4.5 units more than displayed.

Insulet is using the plunger position to calculate insulin remaining, so it is a rough estimate! It is not exact.

> [@The OmniPod's "reserve tank"](https://forum.fudiabetes.org/t/the-omnipods-reserve-tank/1957/1):
>
> But for amounts remaining between 5 and 50, you can add roughly 4.5 units, which is kind of like the pod’s safety reserve tank.

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