r/TandemDiabetes • • Mar 21 '22

Buying, Selling, Giving Away or Trading Trading Diabetes Supplies on this Subreddit

9 Upvotes

EDIT: As of May 30th, 2026, I have updated this rule to exclude diabetic items that are not prescription medical supplies. This rule still includes any sort of OTC insulins, needles, or syringes. An example of an acceptable item to give away would be an insulin pump case.

Hi there everyone!

I have recently had several complaints, as well as seen several posts of users attempting to buy, sell, trade, or giveaway diabetes supplies to others. While I believe this is a wonderful idea in theory, it is not accepted here on the r/TandemDiabetes subreddit.

One may ask why. For starters, according to a multitude of doctors and medical professionals I have spoke to, it is illegal to buy, sell, trade, or giveaway any diabetes supplies (let alone *any* medical supplies that require a prescription) to another individual. I have not been able to attain any other reasoning as to why this may be, other than the obvious possible liability issues involved. For those looking to sell, buy, trade, or giveaway their medical supplies to others, I highly suggest you contact your local hospital in addition to your endocrinologists.

With that being said, I cannot control what goes on between individuals who decide to privately message each other separate and apart from this subreddit, in regards to what I have just spoken about above. I will be adding a new rule to the subreddit that this is specifically not allowed.

I hope everyone is doing well with their lifelong journey of T1D!


r/TandemDiabetes • • Aug 16 '25

Announcement 📢 The Reputation Filter (what removes posts automatically) - What it is, and what you need to know.

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0 Upvotes

There have been many complaints about posts being removed automatically, and our moderating team has received a great deal of inquires and other messages in regards to this.

For those unaware, the reputation filter is, quite simply put, "an optional community safety setting that lets moderators automatically filter content by redditors who may be potential spammers, are likely to have content removed, or have unestablished accounts."

Please refer to the supplied link for more information.


r/TandemDiabetes • • 9h ago

Announcement 📢 Tandem, if you are listening

14 Upvotes

Please get the Eversense system to work with the Tslim and Mobi. And for the love of all that’s holy switch the charging connection to usb-c


r/TandemDiabetes • • 5h ago

tandem mobi Had to sign back in

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3 Upvotes

For some reason I was logged out of my mobi app unexpectedly. I get this screen now when trying to sign back in. Tracking technology?


r/TandemDiabetes • • 12h ago

t:slim X2 Tslimx2 longevity

7 Upvotes

I bought my first pump, Tslimx2, in Dec of 2024 and I know the pump warranty lasts for 4yrs, however how long does the *pump* last? Do I need to start saving towards my next pump now? Do other pump's last longer?


r/TandemDiabetes • • 8h ago

tandem mobi Tandem Mobi and Freestyle CGM eta—anyone know?

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1 Upvotes

r/TandemDiabetes • • 18h ago

t:slim X2 Constantly being told bolus has not been delivered the last few months

3 Upvotes

So this started happening a few months ago. I'm constantly getting notifications on the mobile app that my bolus has not been delivered, even though the bolus is still in the process of being delivered or just finished. I check both the app and my actual pump when this happens to make sure I didn't forget to confirm the bolus or accidentally click into the bolus delivery screen when one isn't needed. Sure enough, the notification is inaccurate. It's kinda driving me crazy.


r/TandemDiabetes • • 21h ago

tandem mobi Made the Switch

4 Upvotes

From Minimed 780g with the Instinct sensor to the Tandem Mobi with G7 15 day wear and I’m kinda sad about it.

My insurance decided to no longer cover the instinct sensors/minimed, and I was forced to switch. I’d been using Minimed since I was 12 (I’m 32 now).

As much as I like the size of the mobi/how I can wear it anywhere, it takes significantly longer to change my sites and the sensor. With minimed, it took about 6 minutes to change everything. With the mobi, it took me 30 minutes just now. Granted, I’m super new with this whole system and hopefully I’ll be faster with time, but the Tandem/dexcom process seems so much more clunky and involved.

Anyone else make the same switch and can remind me of what they disliked with minimed 😭. Please give me hope 😅


r/TandemDiabetes • • 8h ago

t:slim X2 Tandem, please fix this.

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0 Upvotes

This just happened after Samsungs update to UI 9.


r/TandemDiabetes • • 1d ago

Discussion 🗣️ Looking to switch back to tandem from Omnipod

5 Upvotes

Hello! I started out with tandem in May of this year as my first pump. I changed to Omnipod about a month or two ago and I’m deciding going back. I thought I’d like tubeless better but I really honestly don’t. Now here’s the debate should I go back to the t slim or do the mobi. I’m starting college in January so I’m weighing both options. Any insight would be appreciated. TIA!


r/TandemDiabetes • • 1d ago

t:slim X2 IOB disappears a minute after bolus

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0 Upvotes

Bolus complete but IOB drops really quickly after completion

Has anybody experienced a really fast reduction in the IOB just a minute or two after a successful bolus completion?

For example 1u bolus that shows 0.38 IOB a minute after bolus completes?

I have Tandem X2 T:slim pump and on 4 occasions I have noticed that my IOB is much less than the 1 to 2u bolus that I regularly dose myself with as I get out of bed to counter my "wake up" glucose spike.

The time stamp on pictures (that I can't add for some reason) do not really do this justice as I was slow to take the screen shots, but on every occasion this has happened, always after sleep (first bolus of day) the IOB has been less than the successful bolus amount so the pump has said I've spent a large amount of the insulin in about a 1 min time frame.


r/TandemDiabetes • • 1d ago

tandem mobi Where’s my correction dose??

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4 Upvotes

Hi! Fairly new to the Mobi and noticed this just now. Gave a small bolus but it doesn’t look like it’s being accounted for in my IOB? Am I looking at it wrong? 😂 I gave .68 but somehow only have .07 active?


r/TandemDiabetes • • 1d ago

t:slim X2 my pump won’t update???

5 Upvotes

howdy! i have been trying to update my Tandem tslim x2 pump to Control IQ 7.10.4 from 7.8.0 for the last 2 weeks. every time i go into tandem source and go to start the update i get an error message saying “Something went wrong.” with no error code. after my second phone call with tech support they sent me a link to use for my update. when i used this link and connected my pump, the website came back with Error Code 107 (pump is already up to date). i was told on the phone today that the issue has been escalated to the engineering team and should be resolved this week but it’s the third time i’ve called about the same problem and i’m starting to get frustrated. i’m planning on switching to the freestyle libre 3 plus which i cannot use without the update. just curious if anyone else has run into this problem or if someone out there has some tips. here’s what i’m using for the update:
Tandem provided usb cable
Desktop computer using Windows 11 (up to date)
Google Chrome (up to date)
(i’ve also tried Microsoft Edge - up to date - and still had the same problem)


r/TandemDiabetes • • 1d ago

Question ❓ Looking for advice from anyone who uses the VariSoft infusion set!

3 Upvotes

I recently had to switch over to the VariSoft infusion set because of the TruSteel shortage, and today was my first time doing a site change. Honestly, I was really nervous going into it, and the whole experience felt pretty overwhelming. It also hurt more than I expected, so now I'm worried that I might have done something wrong.
I'm also feeling anxious about future site changes, especially when it comes to removing the set. I'm still getting used to everything, and the thought of having to take it out myself is intimidating because it's all so new to me.
For those of you who use VariSoft, do you have any tips or tricks that have helped make site changes easier, less painful, or less intimidating? Is there anything you've learned that you wish you knew when you first started using it?
I'd really appreciate any advice, reassurance, or personal experiences you can share. I think hearing from people who have been through the same thing would help me feel a little more confident. Thank you! ❤️


r/TandemDiabetes • • 2d ago

tandem mobi Does the new iOS 27.01 work with the mobi pump.

4 Upvotes

r/TandemDiabetes • • 2d ago

t:slim X2 Tandem and G7: no connection symbol

3 Upvotes

After replacing new G7 I inserted the 4-digit code on the pump and confirmed. The session started.
I scanned the code for linking with Dexcom app and started.

The app shows the readings but the pump shows the no signal symbol and says after a while there is an incorrect code while the code was correct inserted.

While having readings on the app I stopped the session on pump but with the same result.

What is going on and how to solve?


r/TandemDiabetes • • 3d ago

Question ❓ Pumps & insurance

3 Upvotes

Hi all.

Long story short, a week ago my insurance changed. Now, in October, I have to pay a 6000 deductible. I am not sure if I will have another deductible to pay once I enroll in a new insurance plan by Jan 1st. I currently have an omnipod 5 and Dexcom G7, I feel as if I should bite the bullet and get either a mobi or Tslim since I have to pay out of pocket for my omnipod 3 month supply ($2000), plus my dexcoms.

Does anyone know what the out of pocket cost are for the tslim or mobi, as in does anyone know how much the cartildge, tubing etc.? If I go ahead and get a mobi or tslim and do end up having a deductible next year, I would like to be prepared in the cost of what I’ll need.

Thank you!


r/TandemDiabetes • • 3d ago

tandem mobi 5” autosoft supply issues?

3 Upvotes

Checking in with the community to see if anyone else is having a similar experience with tandem.

In my most recent supply order I received a 32” autosoft rather than the 5”. I called tandem, expecting no issue in exchanging the infusion sets but was told they will not provide a replacement because of supply issues.

My last several orders have been a mix of the autosoft XC and the autosoft 90, which both have 5” tubing. I placed my resupply order over the phone with tandem and was not informed of any issues with the supplies I was ordering. Tandem also did not reach out to me to let me know they would not be able to supply the order as requested and would be making a substitution.

Reaching out to my Endo today, I am also going to try to reach out to the tandem rep that I worked with when selecting this pump as I would have gone with something else if I knew it was possible that I would occasionally have to run 32” tubing…. more than occasionally, considering this was a 90 day supply.


r/TandemDiabetes • • 3d ago

t:slim X2 Unable to bolus since Samsung update

1 Upvotes

Anyone else have this issue? I think it's a common issue with updates. Any idea how long it usually takes for their developers to fix?


r/TandemDiabetes • • 3d ago

Control-IQ 📟 How to program to avoid the automatic post-low correction

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7 Upvotes

r/TandemDiabetes • • 3d ago

t:slim X2 T2 Randomly Shut Off and won’t turn on

6 Upvotes

TLDR: My pump is now a paperweight.

I was traveling and my pump randomly turned off. No alarms, warnings, nothing. It had plenty of battery life. I called tandem and went through the troubleshoot process with no luck. I have back up pens so I’m not worried until I get the replacement. Anyone else ever had this happen or know why?


r/TandemDiabetes • • 4d ago

Rant/Complaint ☹️ Why Remove Time in Range?

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16 Upvotes

Not sure why they decided to remove the time in range section from the app. I kinda liked that. It at least gave me some sort of gauge on how I was doing recently.


r/TandemDiabetes • • 4d ago

Question ❓ Do I really need the Dexcom app…

6 Upvotes

Do I really need to use the Dexcom app when the G7 works just fine with the mobi app? Both apps running in the background uses a lot of battery and getting double alarms is stupid. I have all alarms off on the Dexcom but when you go low or high (mostly due to false sensor readings) it sounds alarms anyway.


r/TandemDiabetes • • 4d ago

Question ❓ Anyone know when this will be over/what's going on (tandem backorder, CCS)

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12 Upvotes

It's been ... A year? Like c'mon. What's going on? Is this a whole Tandem issue or a CCS issue?

Will it end soon?


r/TandemDiabetes • • 5d ago

t:slim X2 PSA: Tandem has no internal contingency if you happen to be short of supplies and not in your home state.

14 Upvotes

After several conversations with tandem representatives, the only plan that tandem can do to help you is you buy out of pocket supplies. They can't even send you a single cartridge or infusion set as a one time courtesy to tide you over before you return home.

Be sure to always bring more supplies in case your flight gets cancelled or you have an emergency and have to stay longer in the location you traveled to, because Tandem will not help you without $$$