People who use tap water say what!(That's how they Aqwwa cultorrr down der in floor-iduh that way it's hurricane proof and fits in the back mah double wide clyde! I'm gon put me a shark and one dem dare sealions and imm on make do tricks for cans a tuna and spam and make lots of ono's to bet on my son dale jr jr jr nascar swap race(hilljack word for money what they think pesos are) then I'ma get one them there hot tub out one them nice rich white collar neighborhoods put in da back mah truck and me and my old lady gon spend are lotto winnins(wins 500$on scratch off) and make us whatchu them vactiy places in jamaica reggaeville call one dem der fancy scuba dive ponds and grow querrelll. Like that one gay asian guy on da youtube's interwebs and get richgo big or go home.
queen size water bed frame, with liner, should do ya.