# How to deal with the resin in tank after print finished? **URL:** \ **Category:** General Discussion\ **Created:** [May 13, 2019, 2:26pm UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387 "2019-05-13T14:26:48Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![TONYLABS](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/tonylabs/32/14191_2.png) [@TONYLABS](https://forum.formlabs.com/u/TONYLABS)\ **Post date:** [May 13, 2019, 2:26pm UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/1 "2019-05-13T14:26:48Z")
Guys, Any good idea for resin recycle when the print finished? Currently I use a small container to keep the rest resin. If you take a look at the photo take, there are a lot of bubbles. Few questions: 1. Can I pour resin back into the cartridge? 2. Can I just keep resin in the tank for a few days? Like over a week? (In a little dark room) ![IMG_3280%20copy](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/2X/3/331a4e1a656112f97d536b3941f13a801c348feb.jpg) ---
**Author:** ![Gareth](https://avatars.discourse-cdn.com/v4/letter/g/ba8739/32.png) [@Gareth](https://forum.formlabs.com/u/Gareth)\ **Post date:** [May 13, 2019, 4:13pm UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/2 "2019-05-13T16:13:24Z")
Hi Tony, you can filter it back in to the tank or cartridge with 190 micron (or finer) automotive paint filters and a funnel. This will trap any debris such as dust and dirt that have made their way in to the resin and also any partially cured resin from fails or peeled layers that may have detached during printing. Apparently its not recommended to keep the resin in the tank for too long (we’re talking weeks to months I believe) as it can cause the clear, rubbery layer to detach from the tank base. In this case take it out of the tank and store it somewhere dark or filter it back in to the cartridge. ---
**Author:** ![TONYLABS](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/tonylabs/32/14191_2.png) [@TONYLABS](https://forum.formlabs.com/u/TONYLABS)\ **Post date:** [May 14, 2019, 1:21am UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/3 "2019-05-14T01:21:48Z")
Thanks for your info. Really helpful. ---
**Author:** ![JohnHue](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@JohnHue](https://forum.formlabs.com/u/JohnHue)\ **Post date:** [May 14, 2019, 6:15am UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/4 "2019-05-14T06:15:00Z")
If I understand correctly you want to save the resin stuck on the print and BP after the print is finished ? If so take a look at that : > [@Form 2 Build Plate Drip Holder](http://forum.formlabs.com/t/form-2-build-plate-drip-holder/18095): > > I took and modified a STL print available here for draining the build plate of excess resin after a print. That one just held the plate at a flat angle so the resin dripped off an entire edge. Mine runs the resin to a corner and I fell drains a lot more of the resin. It still needs some work on the top corner support but otherwise it works real good. [Build%20Plate%20Holder] This is the old one. Here’s my newer design. [Build%20Plate%20Support%20in%20use] I have plans for a second Form 2 in… Doesn’t work for the tallest prints but worth a look. If your print doesn’t have any minima you should really not get any bits to filter, and I would pour the resin straight back into the tank. I don’t care about the resin stuck on the parts, but if I print a small part I still use the scraper to scrape off the resin stuck on the BP and pour is straight into the tank (from the BP, I scrape gently so at to not put aluminium bits into the tank). In case you really want to pour into a container, then back into the tank, then use a black, opaque container with a somewhat airtight lid and you won’t have to store the container in a dark room 😉 ---
**Author:** ![billb](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/billb/32/5587_2.png) [@billb](https://forum.formlabs.com/u/billb)\ **Post date:** [May 14, 2019, 7:12am UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/5 "2019-05-14T07:12:32Z")
I’ve found it is really important to filter any resin left on the build plate if you use mini-rafts and an LT tray. The bases of the mini-rafts tend to break off and get mixed in with uncured resin. If this resin is not all removed you can get these small discs causing permanent depressions in the LT tray’s base coating. ---
**Author:** ![JohnHue](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@JohnHue](https://forum.formlabs.com/u/JohnHue)\ **Post date:** [May 17, 2019, 2:16pm UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/6 "2019-05-17T14:16:11Z")
You’re absolutely right, we have made the same observation with mini rafts and I completely forgot to add it to my previous comment, thanks for pointing it out ! ---
**Author:** ![TONYLABS](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/tonylabs/32/14191_2.png) [@TONYLABS](https://forum.formlabs.com/u/TONYLABS)\ **Post date:** [June 2, 2019, 11:51pm UTC](https://forum.formlabs.com/t/how-to-deal-with-the-resin-in-tank-after-print-finished/23387/7 "2019-06-02T23:51:12Z")
Awesome, thank you!!!