verticals/horizontals (across the verticals) ready to apply solid stain?

Thanks for the help so far! I am definitely doing a two tone scheme - solid white on the verticals and lattice and then probably the TWP pecan se...

OK, that is what I planned on doing next anyway. In prep for sanding, should I: 1. Use Defy cleaner and powerwash? Or just powerwash away...

This morning you can see the difference where the stripper was applied to a quarter of the deck versus the rest of the deck - the rest of the deck is ...

Pic of spindle showing not all stain would come off...