I have an ironwood (ipe) deck which has weathered to grey where it is exposed to the elements. Previously I have refinished it by sanding (very laborious) before reapplying stain/finish. I am considering trying to use a pressure washer to replace the sanding step this time. I do not have much experience with pressure washers so a few questions occur to me before I begin:
- What "power" pressure washer should I rent? Is there an upper bound beyond which I would be likely to harm the ironwood?
- What nozzle would be most appropriate?
- What (if any) additives to the water would be advisable? (the deck is adjacent to a fish pond so ideally nothing harmful to them)