We've just picked up a Used Dehumidifier manufactured in 2007.. From the Sticker behind the Reservoir it's a Simplicity Brand done up for Canadian Tire, one dial twist knob style... Had the dial set at say 50% for 12 hours, Nothing... Have just increased to say 75% to give that I try... Of all the rooms in the Basement this is where we feel the most Dampness... btw We have a Finished Basement ( Rec Room / Laundry, Furnace Room, Bedroom, Large Closet with Sump Pump in corner ) The Dehumidifier is located in the Bedroom and away from the s/p too

