@franz Use a belt sander or rent a drum sander. Orbital sanders leave swirl marks.

@franz For the gray deck you already have a solid stain so the easiest is to reapply our RAD Solid stain in gray after prep.

@franz Yes, you could use the RAD PaintStrip first to remove as much as possible (it may remove it all) and then sand the rest if needed. Brighten all...

Two coats applied wet on wet for the horizontals and one coat for the verticals is okay. See some TWP tips here:

Looks like a solid stain. Strip off what you can and then brighten the wood. Reapply a solid stain. RAD products would be best.

Morning is okay. We do not use Flood anymore due to changes in formulas and poor results so not sure about the amount of coats needed or the time bet...

You are not prepping correctly. Post pics of all three decks for prep advice.

Not sure if another coat will even it out but if you use the prep kit and pressure washing, it should.

What you have on the wood is more solid/opaque than semi-transparent. Behr lies about their opacity. We would power sand it off and go with a true pen...

That is oxidation you did not fully remove. Redo Step 1 and make sure to use a pressure washer as well.

No, it has gone bad.

@grammy57 it should as long as it does not freeze.

Use the RAD. 2-3 gallons will work. Opened stain will not last 2-3 years.

Sure you could try that.

Look’s opaque now which means it will be a very difficult strip. You could try the RAD PaintStrip and sanding to remove. FYI, TWP was never banned ...