I have a little real estate available immediately behind A-Furnace stoves and thought that a Dorr Thickener would fit nicely. The nearby precipitators and gas washers would no doubt produce a lot of waste water needing treatment. Several modelers have built very nice Dorr Thickeners out of CD cases. I considered this, however, it would have been hard to fit two in my space, but one larger one would work well. For the tank I used a 6" PVC pipe coupling. I carefully cut it down using a table saw. It is attached to a .060 styrene base that extends past the tank walls slightly. In the center I attached a 7/16" tube that the rotating arm assembly will sit on. There is also an upper ring that I attached.
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| Dorr tank, footing, and assembling the top ring |
For the rotating assembly I used mostly Walther's conveyor kits - not the "Modern Conveyor" with the curved roof, but rather, the smaller squarish conveyor - just called conveyor kit. The core is a 1/2" piece of Evergreen tubing surrounded by framework from the conveyor kit. The arms of the rotating assembly are the same conveyor kit frames, but glued up in triangular sections.
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| Rotating assembly |
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| Testing for fit |
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