We are selling our proofing tank. It is a great, easy-to-use setup. The sale includes a 480 gallon single wall stainless tank with 1.5" sanitary drain and valve, a GSE 335 digital readout with a relay (to turn water on/off), and 4x 2,500 lb load cells. We currently weight out to 0.01 but that can be adjusted for your preferred resolution. $3,500 F.O.B Columbia, Illinois 62236 For more info, please email adam dot stumpf at stumpysspirits dot com