Used approximately 200 gallon vertical 316 stainless steel holding tank. 37" diameter X 47" deep. Open top with slant bottom. 4" side bottom drain and 3" side bottom drain, (4) 3" and (2) 2" top side inlets. (2) 2" and (1) 3" mid-side inlets and outlets. Mounted on stainless steel legs giving 12" clearance.