# Resin tanks changes

**URL:** <https://forum.formlabs.com/t/resin-tanks-changes/21390>\
**Category:** Support & Troubleshooting\
**Created:** [November 29, 2018, 8:10pm UTC](https://forum.formlabs.com/t/resin-tanks-changes/21390 "2018-11-29T20:10:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SDTech](https://avatars.discourse-cdn.com/v4/letter/s/e5b9ba/32.png) [@SDTech](https://forum.formlabs.com/u/SDTech)\
**Post date:** [November 29, 2018, 8:10pm UTC](https://forum.formlabs.com/t/resin-tanks-changes/21390/1 "2018-11-29T20:10:01Z")

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Hello everyone,

We have been using model resin to print everything so far and our cartridge emptied. I put in a new grey resin cartridge and a new resin tank. My question is when I get more of the model resin do I need a new resin tank or can I just use the old one with the old model resin still in it?

thank you to anyone who replies.

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**Author:** ![Walter\_Gillespie](https://avatars.discourse-cdn.com/v4/letter/w/35a633/32.png) [@Walter\_Gillespie](https://forum.formlabs.com/u/Walter_Gillespie)\
**Post date:** [November 30, 2018, 5:38pm UTC](https://forum.formlabs.com/t/resin-tanks-changes/21390/2 "2018-11-30T17:38:20Z")

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You can use the same resin tank until it fogs or the PDMS layer delaminates. I’ve used the same resin tray with 4 or more liters of resin with no issues.

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**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\
**Post date:** [December 14, 2018, 5:38pm UTC](https://forum.formlabs.com/t/resin-tanks-changes/21390/3 "2018-12-14T17:38:54Z")

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