From this site we have:
These are some pictures from when the tank was up and running.
Current state of the tank
Eventually after about 6 months of use I moved out of state and drained the tank. The salt that was left has now crystallized.
The Tank
I started building the tank in sep 2015. I finished the tank in about 2 month but it can be done in a month or even couple week if you have all the material and time to do it in that time frame. The cost will be around $1500 excluding the epsom salt. I build the tank using 2×4 and plywood with extra tiles I had on the inside. I initially started using a tarp but it did not workout. 
