What was supposed to be a 5 day install of new red oak and a screen and coat on existing hardwoods has turned into a 12 week ordeal. Both the new and existing hardwoods have been sanded, stained and three coats of oil-based polyurethane applied not one but three times!

Still have issues with chatter, dish out, gapping and lap lines.
The flooring company has been responsive, even bringing in a new crew, but we are at wits’ end. Is this “final” product what we should expect?

Any advise/inputs are greatly appreciated!
Images:
https://photos.app.goo.gl/Hhy38faEkPefShCv9

How far apart are they. Chatter are small marks that look a lot like plainer marks about 1/2" to 1" apart. Waves are described as marks about 3" to 5" a part. I run a American Super 83 and have used Amercan 8 (both are pretty much the same machine) and deal with chatter marks all the time. I had a big problem with waves about 1 year ago. I replaced a lot of stuff on my machine the drum, the drum shaft, tension springs, pulleys (I bought the poly-v pulley from FloorStyle). I think my main problem was I got a drum exchange from a company and the drum was much smaller in circumference than my previous one. After I got a good company (Us Sander) to recover a good drum for me and replaced the wheels with new polyurethene wheels wave has not been a problem. I still do have some chatter but I have a UFO that takes it out pretty good.

Wood floors seldom come out perfect, however that is the goal. The finish and the flooring will amber with time and you will be happier.