i have 2 tanks for sale never used or installed. i was going to install them and decided to go with the Miraco auto waterers instead. i sprayed black undercoating to absorb heat better on the surface that would be exposed to the elements. these covered tanks are made so you can put 3 feet black dirt on top of them but it is advised to build a corral to keep the cattle from venturing on top. these are used heavily in Montana with great success . these are the Bul Tuf brand 3 ftx2ftx 8ft tanks asking $2200 each.