Double-Walled Tank

After mentioning it many times in my previous blog postings, I have finally made the double-walled tank, although a little differently than originally planned. With the first try being a bust and me not have the funds to buy more plastic sheets for more attempts, I had to find objects or materials lying around the house that I could use as substitutions. I looked for a while until I went into the storage closest in the attic. Inside, I found a old vase that had originally been holding a bouquet of tulips two valentines ago and a small clear plastic trash can.

The two objects will serve as substitutes for the two walls. The trash can being bigger with an 8.5 inch diameter, will act as the outer wall with the 6 inch diameter flower vase as the inner wall. The two fit nicely together with about a 1.25 inch space in between the two. Because the inner flower vase displaces water it acted as a boat and wouldn't stay at the bottom of the trash can. It was displacing so much water that I struggled for a while trying to put things inside heavy enough to way it down. I then tried another method of gluing the two together. For the adhesive, I used hot glue because it isn't water soluble. Unfortunately, the glue doesn't stick well to the glass and would separate once water was added. We are going to try to use another adhesive to see if it works better, and if not, we might have to modify the idea. The modified idea is to use dry ice and colored lights to add a cool looking effect inside the tank. This is also cost effective since dry ice is sold for about $1.62/lb. around me and I would only need a pound for this project.