Octagonal Blunger Tank with Mixer and Mounted Access Ladder. Approximate capacity: 250 gallons. Inside tank dimensions: 3 ft. 5 in. dia. x 4 ft. straight wall. Approximate 3 ft. 8 in. propeller dia. U.S. Electrical motor: 3 Hp, 230 Final rpm, 220/440 V, 8.6/4.3 A, 60 Hz, 3 Phase. This tank features a split paver brick lining with sloped bottom surface, a side-mounted ladder, and is also equipped with a mixer with a stainless steel agitator. Used at Crane Plumbing in their manufacturing line, this octagonal tank saw duty using porcelain slurry, also commonly known as “slip”. Top hole: 1 ft. 8 in. L x 1 ft. 2 in. W. (1) 3 in. MNPT. (1) 2 in. valve outlet. Overall dimensions: 6 ft. 4 in. L x 4 ft. 3 in. W x 9 ft. H.