Upgrade for leaking "Gardena Kleinstreuer S" (Art.-Nr. 3255-20)

I bought a Gardena Kleinstreuer S (item number 3255-20) and was horrified that the road salt not only leaks out of the intended opening but also between the container and the lid. At first I suspected that a sealing ring was missing, which unfortunately wasn't confirmed. For this reason, I designed my own seal to prevent leakage. I first printed a prototype out of PETG and then a variant using Bambu Lab TPU 95A HF filament. Both variants are suitable for sealing, although I use the TPU variant myself.