The cardboard tube being the important part, I thought I would focus on how I used it, and what I did to it. It’s not something new and innovative, but I was still happy with how it turned out.
I started with a tube from a paper towel roll and cut it in half, so I had two equal tubes. I then cut one of the smaller tubes down one side, horizontally. And then cut it into fiver vertical strips. I glued three strips to the outside, they left a small gap which I made sure was on the bottom where it will be less visible.
I sised the remaining two remaining strips to the inside of the tube, I had to cut them down (maybe an 1/8th at most) and then glued them on the inside, staggering them so they did not overlap. It made the tube really tough.
The vent pipe out of the top is a hollow plastic cotton swab tip and a small black plastic block from a tube of 60 second epoxy. (just fyi)
I attempted to make the sides of the tank with some cardboard, but I cut like an ork, so I cheated instead. I set the tank on a strip of tape and poured resin inside it. And poof, instant tank side! And the tape left a neat texture.
I took the small sign off the “pump” and replaced it with another little bit, that should end up as some sort of readout.
and then I replaced the small sign with a big one, complete with a large red arrow! (out of a broken wall thermometer). Which leads us to the current status as of now.