If you choose to refinish keep these things in mind.
Floor sander paper keeps tearing.
I removed one in my floor and now i have a lovely squeak in that spot.
After the floor finish is gone you can t see whether the sander is doing its job.
Sure it is a big noisy and dusty job but it is doable if you feel up to the task.
Prevent sandpaper from tearing.
Unfortunately you have a few deep scratches so a small buffering job is just not going to cut it you realize that you will need to rent a big drum sander or orbital sander and get this floor down to the original wood.
To rule out belt age as a possible problem purchase what you expect to use within eight months to a year and store unused belts in a temperature controlled place.
Those random nails in the floor were probably used to stop squeaks.
The machine is raising dust and everything seems fine.
Sweep the floor then change to a 36 grit belt on the drum sander sand the main part of the floor then edge the perimeter at 36 grit and so on.
A tongue and groove floor cannot be sanded as many times as a plank floor.
I sanded 3 rooms of oak in my mothers house with an orbital sander until it died and then a palm sander.
It will be easier to see exactly how much finish you have left to remove with the edger which keeps the amount of edging you have to do to a minimum.
Since the sanding process can remove a lot of surface your floor needs to be at least 3 4 thick.
Breaker floor scraper category 02 group 268 designed for use with 1 1 8 in.
When replacing the sandpaper on a finishing sander stack two or three sheets together and clamp them on the sander at one time.
This high quality vulcan accessory safely and efficiently removes vinyl floor tiles carpet adhesive cork and other materials from concrete and wood floors.
So you have decided that your old and tired hardwood floor needs to be re finished.
Also keep in mind that the belt sander is a more aggressive floor sanding machine compared to the planetary sander so you may be able to rent this machine first in order to get the old finish off and rent the planetary sander to provide the finish sanding.
The paper should be of better quality at lower prices.
Then i used the square buff sander on the 4th room because it was so large.
When not using your sander release the tension on the belt.
And you may not discover this until you put a finish on the floor.
But the dull paper isn t cutting deep enough to remove the scratches left by the previous grit.
Move the sander back and forth from front to back on the sander rather than side to side to prevent the edge of the sandpaper from catching and tearing on the grain of the wood.
If the problem persists exchange the sander or have a warranty service center check the tension setting.
Shank breaker hammers and hammer carts trolleys.
Woodtick has a great answer may i add you can take a couple of used up sheets a couple that have not tore and keep them on the sander and put the new one over the top of them so it will give it a little extra padding as woodtick said too much pressure will cause the tearing let the sander do thework yeaa woodticks 10 points not mine.