This is a resin removal tool for easy clean and change of resin without taking out the vat.

Parts required:

A 5V peristaltic pump ( https://www.ebay.de/itm/403675977583 or here https://www.aliexpress.us/item/3256804106105651.html) Switch USB-Cable You can see the pump in action here:

https://youtube.com/shorts/JYr_WT9X53Q