On May 1, 8:17*am, jeff37 wrote:
I dought its a red oak deck likely PT pine. Cabots oil is good,
failure of stain is often not following instructions, like it gets to
cold at night-50 , or was damp, or moldy. Bleach Kills mold cheaply.

Right...I said it was red cedar in the very response you quoted...

I know there are a handful of reasons it may have failed, but right
now I'm just trying to figure out how to fix it.

Cruise your local pro paint stores, lumber yards the library (Consumer
REports) and home centers and ask a whole bunch of questions. Distill
all the answers and keep trying all the remedies offered. One might
work some day, but hopefully in a few years the appearance of the deck
will no longer be a major concern and you can let it age gracefully
until it is time to replace it with something more durable. Accept the
fact that if you insist on a new looking deck it will be as high
priced in terms of materials and labor as having Paris Hilton for a
trophy wife.Good luck.

Joe