ok so i have this crazy idea...
did the weight checks and stuff and making sure on a couple of sites if it would work. my floor can hold it because its located above a steel beam!
so it will be 2 ft. long x 2 ft. wide x 2 ft. tall
thinkin of this for the main... support of it all.
some plywood for the inside with an outside wall support of rocks. sand will be used to cushion the tarp. should look something crazy like this
http://i4.photobucket.com/albums/y12...n/DSCF0051.jpg
thats not mine but it would turn out to be something along those lines....
the plywood is to primarily just hold the sand in... so it would be like a box without a top. then i would place the sand in it and start building the rock wall for the outer support. Next, i would insert the tarp and place rocks on top of the folded line of tarp to ensure that it wouldnt move anywhere... then fill with water. i will create my own waterfall for this too and have filters and all that media.