Nasco Sludge Judge, 15’

The sampler holds approximately 3 oz. per foot and comes in three 5’ sections constructed of 3/4” clear plastic pipe with screw-type fittings. Lowering the Sludge Judge opens a float valve, allowing materials to flow in. When the bottom is reached, set the check valve by tugging slightly on the rope attached to the top section as you begin to raise the unit. Read the sample amount using the 1’ increments marked on the pipe sections. To release the material, touch the pin extending from the bottom section against a hard surface.