Join Date: Feb 2004
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Yes you can, in fact you can buy just the replacement paddle wheel and the bushes it spins in. Which sounds like it ought to be a cure for what ails you.
Just make sure that you test to see if the rest of the system works by having someone stay up top to watch the display and someone down below spinning the wheel for a while...it would be annoying to swap out the bits only to find that the rest of the system is also clapped out.