Funny you should mention putting toothpaste back in a tube, because I actually helped someone do that last night. It’s possible, but also a huge pain in the ass. That’s not a commentary on anything besides literal toothpaste.
My housemate was going on a trip to Alaska the next morning. She had a mostly empty 3 oz toothpaste tube and she was trying to refill it from a larger tube. No idea what she was so opposed to just buying toothpaste when she arrived. I think she was mostly just doing it because she could.
The solution involved holding the tubes end to end and squeezing the larger tube, alternating with using a stirring rod to pack the toothpaste into the smaller tube.
My housemate was going on a trip to Alaska the next morning. She had a mostly empty 3 oz toothpaste tube and she was trying to refill it from a larger tube. No idea what she was so opposed to just buying toothpaste when she arrived. I think she was mostly just doing it because she could.
The solution involved holding the tubes end to end and squeezing the larger tube, alternating with using a stirring rod to pack the toothpaste into the smaller tube.
I’d build some kind of suction device to put negative air pressure on the tube while holding the nozzle in the toothpaste
