On Tue, 10 Sep 2013 20:51:19 -0400, woodchucker
wrote:

On 9/10/2013 1:03 AM, -MIKE- wrote:
On 9/9/13 11:20 PM, Gramps' shop wrote:
Any reason not to use my ROS to smooth out the joint compound on a
small -- 12x10 -- drywall repair?


The risk of sanding too deep. It would *very* easy to sand too far with
a ROS without a lot of practice.

That size repair with those black, mesh drywall sheets could be done in
less time than it would take to unwrap the get the ROS out, unwrap the
cord and plug it in. :-)
Seriously, drywall mud is about the fastest thing in the world to sand.


Yep, and one more thing, dry wall dust is not like sanding dust.
It's much more abrasive, and would probaby destroy your sander (not
immediately) but as the dust keeps working at the bearings etc.

My thoughts exactly.

I use a dustless system, its a bucket with water, and a hand sander. The
dust gets sucked up by the pad into the bucket of water. A shop vac is
attached... That's the way to go.

I have one that just attaches to a shop vac. As Bill notes, it does
plug up but it takes a lot of dust to do it. It's not difficult,
though a bit messy, to clean. When the job is done, pitch the filter.
Oh, and use the drywall filters. The standard filters are too coarse
and the vac will pump the finest dust everywhere. DAMHIK.

The water filter sounds like a good idea, though with pre-mixed mud it
must make a real sludgy mess.