Good morning Dominick.  I’ve been watching you video about hardwood floor sanding.  It is so well done.  I work at Home-Depot, tool rental, near Montreal, Canada.  I’ve done my 2 story floor made of mosaic using the big rectangular sander.  Excellent job but very slow.  I used that sander to prevent mosaic to come off.

Now I will do my 1st floor made of 3/4 of an inch maple, sanded only one time  when my house was built.  Still have near 3/4 in of floor.  I will use our Clark belt sander, and for leveling the floor, our U-sand orbital the same you used. the same you are using.  My question is should I start with a 60 grit on drum sander ?  I bought an Aspenite ( chip wood ) sheet and I practiced on my car drive way.  It went fine with a 60 grit.  My floor is not that bad.  couples of medium scratch less than 1/8 inches.  I feel 36 would be a bit rough since it would be my 1st time using drum sander. I prefer going 2 times on 60 instead and then, using the 4 disk orbital with100 grit and 120 to end the job as the finish product manufacturer is asking. Latex based Saman Extreme. It contains aluminum oxide for durability.  The same I used on my 2nd floor and stairways.

Thank you for taking time to give an answer and keep-on your good work.

Jean-Guy Bernier

When it’s calm at work, IM practicing to operate the sander, unplugged for sure !  It will be ok !

When