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Prized Contributor |
Joined: Tue Jun 16, 2015 12:02 am Posts: 1756
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You may be able to tell what machine is making the lines and then find a solution. Usually lines are going to come from a machine like a drum sander which goes back and forth instead of around in circles like a rotary sander. Maybe the drum is not even with the floor because of something sticking to the wheels. This is only a beginning. A careful check ought to show the problem so you can fix it. Since you are the one operating the machines, you have the best chance for a solution.
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